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Master Series Inertia Flexible Cum Thru Penis Plug

$199.99
$199.99

Silicone hollow penis plug allows fluid passage during urethral play and BDSM sessions

Key Features:

Advanced sensory control for BDSM practitioners

Medical-grade silicone construction

Unique hollow design allows fluid passage

5.5-inch flexible configuration

Psychological submission enhancement tool

Vendor: XR Brands
SKU: NEW-2003
Availability: In stock
Product type: Penis Plugs
Please hurry! Only 7 left in stock

Controlling sensation and enforcing submission requires precision. The Master Series Inertia Flexible Cum Thru Penis Plug delivers hollow-channel design for fluid passage while maintaining complete dominance during advanced BDSM scenes.

At a glance
  • Length: 5.5 inches total, 4.2 inches insertable
  • Diameter: 0.75 inches, slim and precise
  • Material: Medical-grade silicone, fully flexible
  • Design: Hollow channel allows fluid passage
  • Use: Manual insertion, water-based lubricant compatible
  • Power: No batteries, manual operation only
🚚 Plain, discreet packaging🔒 Discreet billing↩︎ Hygiene-conscious returns policy

What it is

The Master Series Inertia Flexible Cum Thru Penis Plug is a sophisticated penis plug engineered for advanced BDSM practitioners. Its hollow-channel design permits fluid passage while delivering complete sensory control over the submissive. Medical-grade silicone construction ensures body safety, flexibility, and easy cleaning. The slim 0.75-inch diameter and 4.2-inch insertable length make it precise and manageable during intense scenes.

This plug stands apart from standard designs through its innovative hollow construction and exceptional flexibility. Rather than rigid insertion, the flexible silicone adapts to the body during movement and pressure changes. See the full BDSM Australia range of Penis Plugs to compare traditional and advanced options.

Key features

  • Hollow channel: Allows fluid passage during extended wear and control scenes.
  • Medical-grade silicone: Hypoallergenic, non-porous, and compatible with water-based lubricants.
  • Exceptional flexibility: Adapts to body movement and pressure without rigid resistance.
  • Slim diameter: 0.75 inches provides precise insertion and control for advanced play.
  • Integrated base: Secure external grip for easy insertion, removal, and positioning during scenes.

Specifications

  • Total length: 5.5 inches
  • Insertable length: 4.2 inches
  • Maximum diameter: 0.75 inches
  • Material: 100% medical-grade silicone, smooth and non-porous
  • Operation: Manual insertion, no batteries or electrical components
  • Lubricant compatibility: Water-based only
  • Package contents: Penis plug, storage bag, lubricant sample, cleaning instructions

How to use a penis plug

Apply water-based lubricant generously to the plug and opening. Relax and breathe slowly as you begin insertion. Guide the plug in gradually, allowing your body to adjust to each stage. Once fully inserted, check that the base sits comfortably against your body. You may wear it during extended scenes or combine it with other toys for layered sensation.

Advanced users often integrate this plug into power-exchange scenes for heightened psychological control. Pair it with Magnetic Lock Penis Rings to add additional sensation and restraint. Remove slowly and carefully, then clean thoroughly with toy cleaner and warm water before storage.

Always use generous water-based lubricant, insert slowly, and remove gently; clean thoroughly with toy cleaner after each use and inspect for damage before 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 plug with warm water and a dedicated toy cleaner immediately after use. Dry completely with a soft cloth. Store in the provided storage bag away from direct sunlight, heat, and extreme cold. Keep away from other silicone toys to prevent surface degradation. Inspect regularly for tears or damage before each use.

Learn more

Understanding penis-plug design and function deepens your approach to advanced BDSM play. Read Penis Envy In A Nutshell for detailed insights into how these tools work. Knowledge of technique, material, and safety transforms casual use into intentional, powerful scenes.

Mistress Athena's training notes

This plug has become essential in my dungeon work. The hollow design grants me control most practitioners never achieve—I can monitor fluid response, extend denial scenes, and create psychological layers that break resistance. Flexibility matters more than rigidity here; the plug's give allows me to intensify sensations through pressure and movement rather than blunt force.

Insertion becomes a ritual in my scenes. Slow, deliberate placement heightens anticipation. My submissives feel utterly exposed during the process—the hollow channel removes any illusion of privacy. Combined with restraint, this tool transforms a body into an instrument of my will.

Recovery and aftercare shift when this plug is involved. Submissives often require extended grounding afterward; the psychological impact runs deep. Monitoring their breathing and responses during wear tells me exactly how far I can push in future sessions. This plug teaches obedience through sensation and surrender.

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

How it compares

Feature Master Series Inertia Standard Silicone Plug Rigid Metal Plug
Flexibility Highly flexible, adapts to movement Moderately flexible Completely rigid
Hollow channel Yes, allows fluid passage Solid, no passage Solid, no passage
Psychological impact Extreme vulnerability and control Standard submission Intense but less nuanced
Material Medical-grade silicone Standard silicone Stainless steel
Best for Advanced BDSM practitioners Beginners to intermediate Temperature play and intensity

Why you'll reach for it

Snag the Master Series Inertia Flexible Cum Thru Penis Plug at BDSM Australia to unlock advanced control and psychological dominance in your scenes. Its hollow-channel design and medical-grade silicone offer sensations and command impossible with standard plugs. Order now and transform how you explore power exchange. Everything for Bondage Under One Roof.

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 Master Series Inertia Flexible Cum Thru Penis Plug?
A medical-grade silicone penis plug designed for advanced BDSM play, featuring a unique hollow design that allows fluid passage while providing intense sensory control and psychological submission.
When should a practitioner use this penis plug during sexual activities?
Ideal for experienced BDSM participants seeking advanced anal play and sensory restriction. Best used in controlled environments with thorough cleaning and appropriate lubrication for maximum safety and comfort.
Does the Master Series Inertia Penis Plug offer unique sensory experiences?
Provides unprecedented psychological and physical control through its flexible 5.5-inch design. The hollow construction allows fluid passage while creating an intense sensation of vulnerability and complete submissive engagement.
Should advanced BDSM practitioners consider this cum thru penis plug?
Recommended for experienced users seeking sophisticated anal domination techniques. Offers unparalleled sensory control, psychological submission, and a unique approach to intimate power dynamics during advanced play.
How can this penis plug be integrated into bondage scenarios?
Strategically positioned for maximum psychological impact, this plug creates total vulnerability. Use with additional restraints to enhance sensory control and create an immersive domination experience during BDSM interactions.

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We ship same day on all in-stock orders placed before 12pm! Free shipping on all orders above $200.

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We ship our full range of products worldwide with fast dispatch for orders before 12pm Sydney EST!