Xialla is a constriction ring with an anchor. A band runs from the ring to an adhesive pad on the lower back, holding the ring against the base of the penis rather than relying on tension alone to keep it there. The company’s stated consequence is the interesting part: because the anchor does the holding, the ring does not need the tight fit a conventional ring depends on, and it can be applied erect or flaccid.
Our rings are conventional. Soft silicone bands, $24.99 for a graduated set of three and $39.99 for a single, held in place by fit and nothing else. Where Xialla is better is exactly where fit is the problem, and it has more published material behind it than we do.
| Mammoth Force rings | Xialla | |
|---|---|---|
| What it is | Soft silicone constriction rings | Constriction ring with a back-anchored band |
| Stays in place by | Correct tension | Adhesive anchor to the lower back |
| Needs a tight fit | Yes, that is the mechanism | Company states no |
| Applied when | Soft or partially erect | Company states erect or flaccid |
| Sizing | Three graduated rings, or one wide stretch range | Sized, with free size changes stated |
| Regulatory status | Consumer product | Stated FDA-registered Class II device |
| Published paper | None | International Journal of Impotence Research |
| Consumables | None | Adhesive pads, sold separately |
| Price | $24.99 set, $39.99 single | Kit listed at $50 |
Everything in the Xialla column is what the company states publicly, plus one peer-reviewed paper. We have not tested the device and we have run no comparison.
Where Xialla genuinely wins
It removes fit as the single point of failure. This is the real idea. A conventional ring works only if the diameter is right, and getting the diameter right is where most ring purchases fail. Anchoring the ring means the tension can be lower and the ring still stays where it should, and a ring that does not migrate is applying the pressure you fitted rather than whatever it drifted into. If you have bought rings before and abandoned them because they slipped, this design addresses your actual complaint.
Published evidence. There is a paper in the International Journal of Impotence Research describing the device and its rationale for erectile dysfunction associated with veno-occlusive dysfunction. Almost nothing in this category has a peer-reviewed paper attached to it. Ours does not. That is a genuine point in Xialla’s favour and we are not going to minimise it.
Two honest caveats, offered as reading advice rather than criticism. Early-stage device papers and company-referenced trials are not the same as an independent head-to-head against a plain ring, and no such comparison exists that we are aware of. Read the paper rather than the summary of it.
No fixed sizing commitment. The company states size changes are free and that the design does not require a tight fit. If your girth sits awkwardly between standard bands, a design that tolerates that is worth more than a chart that tells you to round down.
Registered device status. Xialla states it is an FDA-registered Class II device with a granted US design patent. We are a consumer product. Worth knowing what that status means before it carries weight in a decision, though: establishment registration and listing are not FDA clearance, approval or endorsement.
Where we win
Price, modestly. Xialla’s site lists its kit at $50. Red Tiger is $24.99 for three rings and Mammoth Ring is $39.99. That is a real gap but a small one by the standards of this comparison, and it is the narrowest of any competitor we cover.
No consumables. The anchor uses an adhesive pad, and the company sells pads separately. A silicone ring costs nothing to keep using until it loses its recoil, which takes years. How many uses a pad delivers and how the adhesive performs on skin over repeated sessions are things we cannot tell you from public materials, and they are the first questions we would ask.
Mammoth Force
Mammoth Ring
The flagship stretch ring. Soft-touch silicone, one size that fits the widest girth range in the lineup.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA
Simplicity. A ring is a ring. Nothing to attach, nothing to position on your back, nothing to run out of, and nothing extra to be discreet about. For men whose fit is straightforward, the anchoring solves a problem they do not have.
Texture, if that is the goal. The Dragon is a textured constriction ring aimed at partner sensation. Xialla is a device aimed at ED and is not competing there.
Trying three tensions cheaply. A graduated set is the fastest way to learn what correct tension feels like, and that knowledge is useful whatever you buy next, including Xialla.
What is identical
The mechanism. Both slow venous outflow so the corpora stay engorged. Both hold an erection you can already get. Neither creates one. Constriction rings are recognised conservative options for erection maintenance and are routinely paired with vacuum erection devices; that applies to both of us.
The safety rules do not change either. Thirty minutes maximum, never while sleeping, off immediately on numbness, pain, coldness, or a dark or dusky colour change. An anchored ring at lower tension is still a constriction device and the timer still applies. Same contraindications: anticoagulants, bleeding and clotting disorders, sickle cell disease, Peyronie’s disease, reduced genital sensation.
And neither one delays ejaculation. See does a cock ring help you last longer? .
Before you buy either
New or worsening erectile dysfunction is a recognised early marker of cardiovascular disease. Any device here manages a symptom. If this is new, or getting worse, get the underlying picture looked at as well.Which to buy
Buy Xialla if rings have slipped or migrated on you before, if your girth does not sit cleanly in a standard band, if you want a device with a peer-reviewed paper and a registered listing behind it, or if applying a ring when already erect is a practical requirement for you.
Buy ours if you have not yet established whether constriction helps you at all, if you want to find that out for $24.99, if you want no consumables in the design, or if you want a textured ring for a partner.
Try this first, whichever way you are leaning: size down one step. A ring that will not stay put is usually a ring that is too big, and a graduated set costs half of Xialla’s kit to test that. If it turns out no size stays put, you have learned something specific, and Xialla is then a targeted purchase rather than a hopeful one. Start with how to measure for a cock ring and the sizing guide .
How we sourced this
Every Xialla claim comes from the company’s public materials and one peer-reviewed paper. The $50 kit price is what the site listed when we checked; prices move, so verify it at source. We did not test the device, we did not run a comparison, and we did not fill in what we could not verify — the adhesive’s real-world durability being the clearest example. The same standard applies to Mammoth Force vs Eddie .
What to read next
Frequently asked questions
What is Xialla and how is it different from a normal cock ring?
Does Xialla have clinical evidence behind it?
How much does Xialla cost compared to Mammoth Force?
Is Xialla better if I am between ring sizes?
Do you need adhesive pads every time you use Xialla?
Sources
- International Society for Sexual Medicine — What is a constriction ring and how does it work?. ISSM. https://www.issm.info/sexual-health-qa
- Sexual Medicine Society of North America — Vacuum erection devices and constriction rings in ED management. SMSNA. https://www.smsna.org/patients/conditions/erectile-dysfunction
- Erectile Dysfunction: AUA Guideline (amended). American Urological Association. https://www.auanet.org/guidelines-and-quality/guidelines/erectile-dysfunction-(ed)-guideline
- Xialla — a novel medical device for addressing erectile dysfunction associated with veno-occlusive dysfunction.. International Journal of Impotence Research. https://www.nature.com/articles/s41443-023-00754-w
- Device registration and listing — establishment registration is not FDA clearance, approval or endorsement of a device.. U.S. Food and Drug Administration. https://www.fda.gov/medical-devices/how-study-and-market-your-device/device-registration-and-listing
About this product category. The FDA classifies external penile rigidity devices as Class II devices subject to special controls. Mammoth Force constriction rings are sold as consumer products. They are intended to help maintain an erection you can already achieve, and they are not offered as a treatment, cure or prevention for erectile dysfunction or any other medical condition.