

Doc Johnson harness system with interchangeable attachment and adjustable straps for couples play
Key Features:
Premium strap-on kit with secure dong attachment
Body-safe silicone construction
Fully adjustable harness system
Compatible with multiple dong attachments
Precision-engineered for maximum performance
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The Doc Johnson Vac-U-Lock 8 Classic Ultra Harness represents cutting-edge adult toy technology designed for intense sexual experiences. Its innovative Vac-U-Lock system allows seamless attachment of compatible dongs, creating a secure and adaptable sexual tool. The harness features fully adjustable straps that accommodate multiple body types, ensuring a perfect fit for anyone wanting to explore penetrative play. Crafted with precision engineering, this kit delivers exceptional performance and durability.
Apply included powder to Vac-U-Lock connection points. Align dong with harness socket and press firmly. Adjust straps for secure, comfortable fit around waist and thighs. Ensure proper alignment before penetrative activities. Clean thoroughly before and after each use.
Experiment with different penetration angles by adjusting harness tension. Combine with restraints for enhanced power dynamics. Use in various positions: doggy style, missionary, standing. Explore role-playing scenarios where dominant partner controls penetration depth and rhythm. Practice communication to ensure mutual pleasure and consent.
Wash harness and dong with specialized toy cleaner. Air dry completely. Store in cool, dry place away from direct sunlight. Use water-based lubricant for smoother experiences. Inspect for wear before each use.
I've used this harness to train countless submissives, breaking their psychological barriers through controlled, precise penetration. The adjustable design allows me to dominate bodies of all sizes, creating intense physical and emotional responses. I love watching their expressions shift from resistance to surrender. The 8-inch dong provides just the right amount of psychological challenge, pushing limits without overwhelming. I strategically adjust the harness to maximize discomfort and submission, turning each encounter into a profound training session.
My advanced techniques involve carefully orchestrating power dynamics using this remarkable tool. I'll restrain my submissive, selecting precise angles that maximize vulnerability. The Vac-U-Lock system lets me switch attachments rapidly, keeping them perpetually uncertain. I've discovered that psychological manipulation matters more than physical size. By controlling breathing, maintaining eye contact, and varying penetration rhythm, I transform this harness into a psychological weapon. Some submissives require gentle introduction, while others demand immediate, forceful domination. I read their responses, adapting my approach to break down their mental barriers completely.
| What You Need to Know | Vac-U-Lock 8 Classic Ultra Harness | Why This Matters |
|---|---|---|
| How Big Is It? | 8 inches, fits 24-54 inch waists | Accommodates multiple body types |
| What's It Made Of? | Body-safe silicone | Hygienic, comfortable material |
| How Does It Work? | Vac-U-Lock attachment system | Easy interchangeable dong options |
| What Makes It Special? | Ultra Harness 2 design | Maximum stability and comfort |
| Who's It Best For? | Adventurous couples, BDSM practitioners | Versatile sexual exploration tool |
Snag the ultimate penetrative experience with Doc Johnson's revolutionary Vac-U-Lock system. Unleash your deepest desires with this premium harness kit. Transform your intimate moments now - limited stock available!
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.
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