Eddie by Giddy is an oval, urethra-sparing wearable sold as an FDA Class II listed ED device. Listed $188-$288, single $188, 2-pack $288 on tryeddie.com as of 2026-09-16; starter kit listed $598. Pos-T-Vac constriction rings is tension rings from a vacuum-therapy brand, meant to follow a pump session. Listed check the maker’s current listing, sold as VED accessories; confirm at source.
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
| Eddie by Giddy | Pos-T-Vac constriction rings | |
|---|---|---|
| Listed price | $188-$288 | check the maker’s current listing |
| Material | firm elastomer, open underside | medical elastomer |
| Sizing | four widths, A through D, with a resizing policy | sized for the Pos-T-Vac system |
| Medical-device listing | maker says yes | maker says yes |
| HSA/FSA (maker’s claim) | claimed | not claimed |
| Vibration | no | no |
| Anaesthetic | no | no |
| Best for | men who want a medical-device purchase, HSA billing, or who found circular rings painful on the urethra | Pos-T-Vac owners replacing worn rings |
| Not for | men who have not yet tested whether any constriction helps | 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
Eddie by Giddy: constriction that Giddy says leaves the urethra and underside arteries less compressed Pos-T-Vac constriction rings: pump for inflow, ring for outflow. Same two-step as any VED protocol.
Sizing
Eddie by Giddy sizing: four widths, A through D, with a resizing policy. Pos-T-Vac constriction rings: sized for the Pos-T-Vac system.
Regulatory sticker
Both are sold with medical-device positioning. Listing is not the same as FDA approval of effectiveness. See each maker’s own language.
Who should buy Eddie by Giddy
men who want a medical-device purchase, HSA billing, or who found circular rings painful on the urethra. Strengths the maker can honestly claim: Class II listing; HSA/FSA eligibility stated by Giddy; sized system; company-cited 12-week trial. Limits: several times the price of a silicone set; still cannot create an erection from nothing.
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.
The cheaper test from this shop
You do not have to pick Eddie by Giddy or Pos-T-Vac constriction rings on the first order. Red Tiger or Mammoth Ring ($24.99 / $39.99) is the Mammoth Force version of this job: a stretch silicone ring. If a $25–$50 product shows you the mechanism does nothing for you, you have not spent $188-$288 or check the maker’s current listing finding that out.
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
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