The Tantus Silicone O-Ring Set brings customizable harness compatibility with six medical-grade silicone rings from 1.2 to 2.5 inches, accommodating different dildo diameters for secure, stable penetrative play.
Key Features:
Six incrementally sized rings from 1.2 to 2.5 inches
Medical-grade silicone, non-porous and hypoallergenic
Six rings sized 1.2", 1.48", 1.74", 1.97", 2.22", 2.5"
Each ring secures different dildo diameters without gaps
Boilable and dishwasher-safe for superior hygiene maintenance
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Tantus Silicone O-Ring Set is a harness accessory kit containing six medical-grade silicone O-rings sized from 1.2 to 2.5 inches. Each ring accommodates different dildo diameters for secure harness fitting. The non-porous silicone is boilable, dishwasher-safe, and hypoallergenic, making it ideal for people seeking customizable, hygienic harness compatibility across multiple toy sizes.
The Tantus Silicone O-Ring Set functions by sliding over the base of a dildo and securing it within an O-ring harness slot, creating a stable connection that prevents slipping during penetrative play. The six incrementally sized rings—1.2", 1.48", 1.74", 1.97", 2.22", and 2.5"—ensure precise fit without gaps or excessive tension that could compromise comfort or control during use.
Medical-grade silicone construction delivers durability that standard rubber rings cannot match, maintaining elasticity through repeated stretching and compression cycles. The non-porous surface resists bacterial colonization and supports thorough cleaning without degradation. For those building a collection of harness-compatible dildos, our steel cock rings offer alternative materials for different sensations and aesthetic preferences.
| Included Sizes | 1.2", 1.48", 1.74", 1.97", 2.22", 2.5" diameter |
| Material | 100% Ultra-Premium Medical-Grade Silicone |
| Quantity | Six O-rings (one of each size) |
| Compatibility | All O-ring harness systems |
| Cleaning | Boilable, bleachable, and dishwasher-safe |
| Includes | Six silicone O-rings in protective storage pouch |
Pairing different O-rings with various dildos allows seamless switching between toys without purchasing multiple harnesses. For those exploring c-ring ticklers, combining harness play with external stimulation creates layered sensation during partnered or solo sessions. Many people discover that testing each O-ring size before committed play prevents mid-session discomfort from improper fit.
Clean the O-rings immediately after use with warm water and mild soap, paying attention to any residue along the inner surface. For thorough sterilization, place them in boiling water for five minutes or run them through a dishwasher cycle on high heat. Store them in the included pouch in a cool, dry location away from direct sunlight, which can degrade silicone over extended periods. Keep them separate from petroleum-based lubricants, which can break down silicone and compromise elasticity.
Tantus Silicone O-Ring Set is manufactured from 100% ultra-premium medical-grade silicone, a non-porous material that resists bacterial growth and remains completely hypoallergenic. The silicone construction ensures compatibility with all lubricants and maintains its shape and grip through hundreds of stretching cycles. Its durability means years of reliable use without the material degradation that standard rubber O-rings experience, making it a long-term investment in harness compatibility.
This set suits people building a multi-toy harness collection, as it eliminates the need for multiple harnesses to accommodate different dildo sizes. Those new to harness play appreciate the comprehensive sizing guide that removes guesswork about which ring fits which toy. Experienced harness users benefit from having backup rings and the flexibility to swap between toys quickly during partnered or solo sessions.
For people frustrated by standard rubber O-rings that deteriorate after a few months of use, discovering medical-grade silicone that maintains its properties for years transforms the economics of harness play. Rather than replacing rings repeatedly, investing in premium silicone once eliminates the cycle of degradation and replacement. The six-size progression means you're never choosing between rings that are too loose or too tight—precision fit becomes the default rather than a compromise. For those who have experienced slipping dildos mid-session due to improper O-ring fit, having six options ensures you find the exact size that creates stable, secure contact without excessive tension. The non-porous surface eliminates the hygiene concerns that plague porous materials, letting you feel confident that thorough cleaning actually removes bacteria rather than just spreading it deeper into the material. For people building a diverse toy collection, these rings represent the infrastructure that makes multiple toys practical rather than requiring separate harnesses for each size variation.
Our independent testers evaluated the O-rings across multiple dildo sizes, testing elasticity retention after repeated stretching, fit consistency across the size range, and cleaning effectiveness. The silicone maintained its grip without permanent deformation, and the incremental sizing ensured that each ring fit its intended size range without excessive gaps or compression.
Testers confirmed that boiling and dishwasher cycles did not compromise material integrity or elasticity. Individual results may vary based on dildo base shape, harness design, and personal fit preferences.
| Product | Unique Advantage | Key Difference | Choose This If You Want |
|---|---|---|---|
| Tantus Silicone O-Ring Set | Six medical-grade silicone rings from 1.2" to 2.5" with boilable construction | Premium silicone maintains elasticity through hundreds of cycles; standard rubber degrades within months | Long-term harness compatibility across multiple toy sizes |
| CBT Cock Ring Sets | Multiple rings designed for penile constriction with varying tension levels | Focuses on erection maintenance rather than harness compatibility | Penis-specific constriction and stimulation control |
| Electro Cock Rings | Integrated electrical stimulation capability with conduction properties | Adds electrical sensation to constriction; requires power source | Combined constriction and electrostimulation sensations |
| Vibrating Cock Rings | Motorized vibration for penile and partner clitoral stimulation simultaneously | Adds vibration to constriction; battery-powered with multiple settings | Dual stimulation during partnered penetrative play |
| Special Features Masturbators | Textured internal surfaces with varied grip and suction options | Designed for solo penile stimulation rather than partnered harness use | Solo pleasure with premium texture and grip variations |
Find our clit pumps and related accessories to expand your collection beyond harness components.
Understanding O-ring sizing prevents mid-session discomfort and ensures stable dildo placement during extended harness sessions. Knowing how to measure your dildo base diameter accurately eliminates guesswork when selecting which ring to use. Our comprehensive cock ring guide covers sizing, fit optimization, and maintenance approaches for maximizing harness compatibility.
Ready to customize your harness setup with precision sizing, Tantus Silicone O-Ring Set is available at Adultsmart. All orders ship discreetly across Australia in plain, unmarked packaging with confidential tracking.
Adultsmart.au 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.
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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..
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.
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.
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
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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, Adultsmart.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.