Mammoth Ring costs $39.99. Pos-T-Vac constriction rings costs check the maker’s current listing. Both sit in the stretch ring aisle. The useful question is which constraint you will live with, not which homepage is louder.
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
| Mammoth Ring | Pos-T-Vac constriction rings | |
|---|---|---|
| Listed price | $39.99 | check the maker’s current listing |
| Material | silicone (store listing) | medical elastomer |
| Sizing | 1.5 in oval inner, 2.5x stretch, girth 4.5 to 7.75 in (store listing) | 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 single stretch ring in the store’s 4.5 to 7.75 in girth band | Pos-T-Vac owners replacing worn rings |
| Not for | buyers who want published millimetre sizes for a three-ring set, or a vibrating ring (this shop does not sell one) | 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
Mammoth Ring: a stretch ring. 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
Mammoth Ring sizing: 1.5 in oval inner, 2.5x stretch, girth 4.5 to 7.75 in (store listing). 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 Mammoth Ring
a single stretch ring in the store’s 4.5 to 7.75 in girth band. Strengths the maker can honestly claim: store-published girth band; silicone; no battery. Limits: figures are store copy, not a lab measurement; no published inner-diameter drawing.
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
Mammoth Ring 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
Mammoth Ring
Stretch silicone ring. Store lists oval inner size 1.5 in and a 2.5x stretch.
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