If you are choosing between Red Tiger and Pos-T-Vac constriction rings, the split is not branding. Red Tiger ($24.99) is a three-ring set when the store has not given you millimetre sizes. Pos-T-Vac constriction rings (check the maker’s current listing) is Pos-T-Vac owners replacing worn rings.
Neither page on the internet can wear the device for you. Fit, and whether a stretch silicone ring is actually your problem, decide more than the brand.
At a glance
| Red Tiger | Pos-T-Vac constriction rings | |
|---|---|---|
| Listed price | $24.99 | check the maker’s current listing |
| Material | silicone (store listing) | medical elastomer |
| Sizing | three rings; inner diameters not published on the store | sized for the Pos-T-Vac system |
| Medical-device listing | no | maker says yes |
| HSA/FSA (maker’s claim) | not claimed | not claimed |
| Vibration | no | no |
| Anaesthetic | no | no |
| Best for | a three-ring set when the store has not given you millimetre sizes | Pos-T-Vac owners replacing worn rings |
| Not for | buyers who need a published inner diameter before they order | men without a vacuum device |
Prices for other brands are approximate and move. Ours are the store listing.
Price
Pos-T-Vac constriction rings is the cheaper of the two as listed. sold as VED accessories; confirm at source. Confirm the other at source before you treat this as a quote.
How they actually work
Red Tiger: a three-ring set. This site does not make disease-treatment claims for it Pos-T-Vac constriction rings: pump for inflow, ring for outflow. Same two-step as any VED protocol.
Sizing
Red Tiger sizing: three rings; inner diameters not published on the store. Pos-T-Vac constriction rings: sized for the Pos-T-Vac system.
Regulatory sticker
Pos-T-Vac constriction rings is sold as a medical device. The other is not. Buy the listing if you need a receipt. Buy the simpler ring if you need to know whether a stretch silicone ring is even your problem.
Who should buy Red Tiger
a three-ring set when the store has not given you millimetre sizes. Strengths the maker can honestly claim: three rings in one box; $24.99; silicone. Limits: no published inner diameters; you still have to try them on.
Who should buy Pos-T-Vac constriction rings
Pos-T-Vac owners replacing worn rings. Strengths: matches an existing pump; clinical catalogue. Limits: not a general-purpose cock ring; you are buying into a pump brand.
When to buy the Mammoth Force one
Red Tiger is ours. Pos-T-Vac constriction rings is not. Ours wins on price and on not needing an account. Theirs wins where the table says it wins: matches an existing pump; clinical catalogue.
Mammoth Force
Red Tiger
Three silicone rings. The store does not publish inner diameters.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA
Safety
The Mammoth, Dragon and Red Tiger product pages say thirty minutes maximum and never while sleeping. Remove at once on numbness, pain, coldness or a dark colour change.
What to read next
- Sizing if this is a ring
- stretch rings we sell
- In-house ring comparison if you already picked this shop