The Dragon is a dual ring with external ridges. Store lists 1.25 in shaft ID, 1.75 in back ID, 2x stretch, girth 4.0 to 6.75 in. Listed $39.99, listed on the Mammoth Force store. FirmTech TechRing is a constriction ring with embedded sensors that log erection duration and firmness. Listed $275, $275 on myfirmtech.com as of 2026-09-16 (listing showed sold out).
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
| The Dragon | FirmTech TechRing | |
|---|---|---|
| Listed price | $39.99 | $275 |
| Material | silicone (store listing) | adjustable band plus electronics |
| Sizing | 1.25 in shaft ring, 1.75 in back ring, 2x stretch, girth 4.0 to 6.75 in (store listing) | adjustable |
| Medical-device listing | no | maker says yes |
| HSA/FSA (maker’s claim) | not claimed | claimed |
| Vibration | no | no |
| Anaesthetic | no | no |
| Best for | the textured dual ring in this shop | men who want a log for a urologist, not just a tighter erection |
| Not for | buyers who want a single smooth band (that is Mammoth Ring) | anyone who just needs to stay hard tonight |
Prices for other brands are approximate and move. Ours are the store listing.
Price
The Dragon is the cheaper of the two as listed. listed on the Mammoth Force store. Confirm the other at source before you treat this as a quote.
How they actually work
The Dragon: a textured dual ring. This site does not make disease-treatment claims for it FirmTech TechRing: constriction plus tracking. The ring still does not create inflow.
Sizing
The Dragon sizing: 1.25 in shaft ring, 1.75 in back ring, 2x stretch, girth 4.0 to 6.75 in (store listing). FirmTech TechRing: adjustable.
Regulatory sticker
FirmTech TechRing 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 The Dragon
the textured dual ring in this shop. Strengths the maker can honestly claim: store-published two-ID chart; texture. Limits: dual ring, not a single band; figures are store copy.
Who should buy FirmTech TechRing
men who want a log for a urologist, not just a tighter erection. Strengths: data if you want it; adjustable; aimed at men working with a clinician. Limits: you pay for sensors you may never look at; charging and app overhead; still a ring.
When to buy the Mammoth Force one
The Dragon is ours. FirmTech TechRing is not. Ours wins on price and on not needing an account. Theirs wins where the table says it wins: data if you want it; adjustable.
Mammoth Force
The Dragon
Dual ring with external ridges. Store lists 1.25 in shaft ID and 1.75 in back ID.
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