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b-Vibe Stretching Tunnel Butt Plug by COTR Inc

$54.99
$54.99

Silicone anal plug with expanding tunnel opening that stretches and trains your ass for submission and deeper penetration.

Key Features:

Progressive anal dilation through hollow tunnel design

Premium medical-grade silicone construction for safety

Hollow center accommodates fingers or smaller insertables

Ideal for anal training and bondage conditioning

Tapered base ensures comfortable insertion and retention

Vendor: COTR Inc
SKU: NEW-12415-METALLIC
Availability: In stock
Product type: Butt Plugs
Please hurry! Only 2 left in stock
Colour: Metallic

Anal stretching requires gradual, controlled progression—and uncertainty about depth or fit can make exploration hesitant. The b-Vibe Stretching Tunnel Butt Plug combines a hollow aluminium design with gentle contouring to guide entry smoothly while letting you see exactly what's happening inside.

At a glance
  • Material: Nickel-free aluminium alloy
  • Length: 70mm (2.75 inches)
  • Widest diameter: 157mm (6.2 inches) insertable
  • Design: Hollow tunnel with see-through opening
  • Use: Solo or partnered anal play
  • Care: Body-safe, easy to clean
🚚 Plain, discreet packaging🔒 Discreet billing↩︎ Hygiene-conscious returns policy

What it is

The b-Vibe Stretching Tunnel Butt Plug is a hollow aluminium toy designed for gradual anal exploration and visual play. Its tunnel opening is contoured to guide entry naturally, reducing resistance and letting you control depth and sensation. The see-through design adds visual interest while the high-quality aluminium body stays cool to the touch and responds to temperature play. Nickel-free construction makes it safe for extended wear.

What sets this plug apart is its dual purpose: functional stretching combined with visual feedback. Unlike solid plugs, the hollow tunnel design lets you observe sensation and arousal in real time, heightening awareness during solo or partnered scenes. See the full BDSM Australia range of Butt Plugs.

Key features

  • Hollow tunnel opening: Allows visual play and sensory feedback while you explore depth control.
  • Gentle contoured shape: Guides insertion smoothly, reducing tension and making progression feel natural.
  • See-through design: Combines visual intrigue with functional awareness during play.
  • Nickel-free aluminium: Body-safe, non-porous, and responds to temperature play or ice play.
  • Easy to clean: Smooth surface washes quickly and dries fast between uses.

Specifications

  • Material: Nickel-free aluminium alloy
  • Total length: 70mm (2.75 inches)
  • Widest insertable diameter: 157mm (6.2 inches)
  • Design: Hollow tunnel with contoured opening
  • Surface: Smooth, non-porous
  • Weight: Substantial but manageable for controlled insertion
  • Waterproof: Yes, fully submersible for cleaning
  • Box contents: b-Vibe Stretching Tunnel Butt Plug

How to use a butt plug

Start with a good quality water-based lubricant and apply it generously to both the plug and your anus. Begin slowly, letting your body relax and adjust to the contoured opening. The hollow tunnel design guides entry naturally—push gently at your own pace, breathing steadily as fullness increases. Take breaks if you need them; there's no rush.

Once inserted, you can control depth by moving slowly or staying still and enjoying the sensation. The see-through design lets you observe yourself and adds visual arousal to the experience. Pair it with other toys or sensations for richer scenes—complementary products like Butt Tails work beautifully alongside. Always clean thoroughly with warm water and mild soap after play.

Always use plenty of water-based lubricant, go slowly to let your body adjust, and never rush insertion; clean thoroughly with warm water and soap before and after play. Safety first. This information is general in nature only and is not medical or professional advice; it does not account for your individual circumstances. Discontinue use immediately if you experience pain, numbness, discolouration, irritation or discomfort, and seek advice from a qualified medical professional if you have a relevant health condition or if symptoms persist.

Care and storage

Wash the b-Vibe Stretching Tunnel Butt Plug with warm water and mild soap after each use, paying attention to the hollow tunnel interior. Dry it completely before storage to prevent any moisture buildup. Store it in a cool, dry place away from direct sunlight. Aluminium is durable and non-porous, so it resists bacterial growth and stays hygienic with basic cleaning.

Learn more

Understanding how to introduce toys gradually into partnered play builds trust and communication. Read more about exploring anal play with a partner in our guide—it covers comfort, consent, and technique. Introducing Penis Plugs To Wife offers practical advice for opening conversations and starting scenes together.

Mistress Athena's training notes

This plug's hollow tunnel design gives me real control during scenes involving gradual stretching and denial. My submissive responds strongly to the visual feedback—seeing arousal in real time intensifies the power exchange. The aluminium stays cool initially, which I use to ground them in sensation before insertion begins. Temperature contrast heightens their awareness of every stage.

What I observe: the tunnel opening creates natural resistance that demands focus from my submissive. They can't zone out—they must stay present and communicate as they surrender depth. This makes the toy excellent for obedience training, as progression requires permission and restraint. I control the pace entirely.

In longer scenes, I use it for extended wear training. The contoured shape sits comfortably, allowing my submissive to kneel or serve while the plug remains in place. Pairing it with bondage intensifies the protocol—they learn that fullness and vulnerability are intertwined. The see-through design also serves my voyeuristic pleasure; I watch their body's honest responses without guessing.

See this and similar tools in action across my 300+ training videos on the BDSM Australia channel.

How it compares

Feature b-Vibe Stretching Tunnel Solid Silicone Butt Plug Glass Butt Plug
Visual feedback Yes—hollow tunnel design shows arousal No—opaque material Yes—transparent or frosted glass
Material Nickel-free aluminium Body-safe silicone Borosilicate or soda-lime glass
Temperature play Excellent—metal responds quickly to heat or cold Neutral—silicone insulates Excellent—glass heats and cools dramatically
Ease of cleaning Very easy—smooth non-porous surface Easy—silicone can trap bacteria if textured Very easy—glass is non-porous and non-absorbent
Stretching focus Yes—contoured opening guides gradual entry Yes—many sizes available for progression Primarily visual; less specialized for stretching

Why you'll reach for it

Order the b-Vibe Stretching Tunnel Butt Plug when you're ready to combine progressive stretching with real-time visual play. Its hollow aluminium design gives you control and feedback that solid toys can't match. Whether you're exploring solo or surrendering in a scene at BDSM Australia, this plug rewards patience with sensation and connection. Add it to your collection today. Service That Keeps Customers Coming Back.

BDSM Australia ships with Australia Post. We ship from Sydney.

All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 1-6 business days after shipping, but may subject to any postage carrier related delays beyond our control.

Free standard shipping on orders shipped within Australia above $200. For orders below $200 standard shipping within Australia is $12.95 and will be added at checkout.

Orders addressed to P.O box, G.P.O box or Parcel Collect will be handled by Australia Post. Extra time should be allocated for these orders.

Shipping Transit Times (Including Free Shipping)

Shipping time refers to the estimated time that it will take to deliver your order after it’s ready to ship (Please note this does not include time to process your order). Shipping time does not commence after your order is put through but begins the moment your order has been processed and is ready to dispatch via the our freight carrier..

1. Major City & Metro Areas (within Australia)

All in stock orders are generally processed on the same day the order was placed on business days for orders received before 12pm. Generally, orders are processed and shipped the same day or next business day.

Orders are typically received 1-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the nearest depot location.

2. Rural Areas (within Australia)

All orders are generally processed on the same day the order was placed on business days before 12pm.

Generally, orders are processed and shipped the same day or next Business day.

Packages below 2kg are usually received 3-6 business days after shipping. For larger packages please allow an extra 1-2 business days for delivery.

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from the local Australia Post depot.

International Shipping

The price for international shipping is AU$12.95 for orders equal to or below 0.399kg (399grams), and AU$22.95 for orders with a total weight equal to or above 0.4kg (400 grams).

All in-stock orders placed before 12pm AEST (Sydney Time) on business days are generally processed on the same day. Packages are usually received 6-30 business days after shipping. 

If no one is available at your delivery address to accept your order a second delivery may be scheduled or you will be notified that your order can be collected from your nearest delivery depot.

Please note in regards to all orders

– These expected delivery dates/times are based on carrier shipping practices, your destination, and the items in your order.
– Expected delivery dates are estimates. Orders can be delayed due to fraud verification or the time of the order being placed. Items that are not regularly stocked cannot be held to the expected delivery dates.
– Orders may be delivered in separate shipments.
– The order cut off times are based on normal Business Hours and exclude weekends and Holidays: Monday – Friday 12 pm
– When your order ships you will receive an email from us with a link to track your order.  If you receive your tracking number before 6 pm (AEST) it may not be updated on the Carrier’s website until that evening.

Due to large amounts of online credit card fraud, all orders are subject to approval by our payment verification department. We will notify you by phone or email should your order be delayed.

We have a 14 day return policy, which means you have 14 days after receiving your item to request a refund for any defective products.

Returns and exchanges are only available for faulty items, goods not as described, or in some instances, for incorrect sizing.

Due to health and safety regulations, sex-toy.com.au cannot resell any returned or exchanged products.

This policy is in place to prioritise your well-being and ensure that you receive the highest standard of hygiene and quality in all products.

To be eligible for a refund, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.

You’ll also need the receipt or proof of purchase. We do not issue refunds for change of mind or incorrect choice.

Under Australian Consumer Law, we are not obliged to accept returns for “incorrect choice” or “change of mind” so please choose your products carefully. 

Any freight and insurance costs to return the item to us are at your expense. This includes the liability for any lost freight – send via registered post.
If your return request is accepted, we will provide you with all instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Damages and issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items

We do not accept returns for any products that have change of mind, damaged products, or for products that have been used or do not have their original packaging.

Please get in touch if you have questions or concerns about your specific item.

Unfortunately, we cannot accept returns on sale items or gift cards.

Refunds

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method within 7 business days.

Please remember it can take some time for your bank or credit card company to process and post the refund too.

Frequently Asked Questions

What is the b-Vibe Stretching Tunnel Butt Plug by COTR Inc?
The b-Vibe Stretching Tunnel is an anal plug designed for progressive stretching and dilation. Its hollow center accommodates insertion of fingers or smaller objects during anal play. Made from premium silicone, it features a tapered base for comfortable insertion and a wide tunnel opening for safe exploration and controlled anal expansion over time.
Should the Stretching Tunnel penis ring work for gradual anal opening?
The butt plug facilitates gradual anal dilation through its tunnel design. The hollow center allows fingers or smaller insertables to pass through safely during play. Regular use helps desensitize the anal opening and stretch tissue progressively, making larger penetration possible over sessions without causing injury or discomfort.
Will this anal stretcher increase sensation during BDSM bondage scenes?
Yes, the Stretching Tunnel enhances sensation during bondage by creating fullness and pressure in the ass. The tunnel's opening allows dual stimulation—internal pressure combined with external touch through the hollow center. Dominant partners can use it for controlled anal play, intensifying submission during restraint scenes while monitoring the submissive's physical response.
Does the silicone tunnel plug provide lasting results from repeated insertion?
Regular use produces progressive anal dilation over time. The silicone construction maintains its shape while allowing gradual tissue stretching. Consistent insertion during sex sessions or solo play creates measurable opening expansion, enabling accommodation of larger insertables or penetration later, supporting long-term anal training goals for receiving deeper penetration.
How does this stretching device support BDSM training protocols?
Use the tunnel plug in domination scenes for controlled anal conditioning. Insertions during bondage establish submission and obedience to dominant instructions. The hollow center lets dominants monitor or insert objects, creating power exchange. Scheduled stretching sessions between scenes condition the ass for increased penetration capacity while reinforcing the submissive's commitment to anal training.

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