Short on time? To find your cock ring size, measure around the base of the penis (or around the penis and testicles, if that is how you will wear it) with a soft tape or a piece of string, then divide by 3.14 to get the diameter. Choose the ring closest to that figure; if you are between sizes, the larger ring is the safer choice. Metal rings do not stretch, so their size matters most. In our range the metal rings have openings from 22 mm to 50 mm. Prices were checked on 2 November 2026.
How to measure for a cock ring
- Decide how you will wear it: around the base of the shaft only, or around the shaft and the testicles.
- Measure around that area with a soft tape measure or a piece of string, which you then lay against a ruler.
- Divide the measurement by 3.14. The result is the diameter the ring needs.
- Choose the ring whose opening is closest to that figure. If you are between sizes, the larger ring is the safer choice.
Every figure below is taken from the size diagram on the listing, in millimetres.
Cock ring sizes in our range
| Ring | Price | Opening or openings | Stretch |
|---|---|---|---|
| Tapered metal penis ring | £19.99 | Five sizes, narrow by wide: 22 × 32, 24 × 34, 26 × 36, 28 × 38 and 30 × 40 mm; 15 mm deep | None, metal |
| Polished metal cock ring | £24.99 | 40, 45 or 50 mm inner diameter; 9 mm thick | None, metal |
| Double cock ring with vibrating butt plug | £21.99 | Two rings, 40 mm and 35 mm across | Not stated |
| Remote vibrating cock ring for couples | £32.99 | Two ring openings, 32 mm and 40 mm | Stretchy, according to the supplier |
| Vibrating double cock ring with rabbit ears | £22.99 | Two rings, described as two sizes; no measurement given | Not stated |
| Vibrating rabbit cock ring | £26.99 | Not stated | Stretchy silicone, as described; how far it stretches is not stated |
| Vibrating double cock ring | £27.99 | Not stated | Double-loop design; stretch not stated |
Metal or stretchy: which should you choose?
- Metal rings are rigid and polished. They do not stretch, so the size has to be right, and the listings advise that if you are new to rigid rings you start with a flexible silicone ring first.
- Stretchy rings are easier to put on and take off, which makes them a better first choice, and cover a wider range, but check the stated ring openings on each listing.
- Vibrating rings add a small motor, sometimes with a remote, usually positioned to stimulate a partner. Their listings give the opening only where the supplier states it, so the table says so.
We will add the missing ring openings once the suppliers confirm them.
Using a cock ring safely
Use plenty of water-based lubricant to slip the ring on, and put it on before an erection, as the supplier of one vibrating ring recommends. Never force or overstretch a ring. Do not wear one for more than 20 to 30 minutes at a time (20 minutes for a metal ring), never sleep in one, and remove it straight away if you feel pain, numbness or coldness, or notice discolouration. If a ring becomes stuck, seek medical help rather than forcing it off. Wash it with warm water and mild soap and dry it fully; keep the polished finish of metal rings away from other toys.
Delivery and returns
UK delivery is free on every order. It normally takes about 6 to 15 days, an estimate rather than a promised date; see our delivery information. You can return an unwanted, unopened and unused item within 30 days; opened or used items are accepted only if they are faulty, for reasons of hygiene. See returns and refunds.
Questions people ask
What size cock ring should I buy?
Measure, divide by 3.14 and choose the closest opening. For a rigid metal ring, go larger if you are between sizes.
Is a cock ring the same as a penis ring?
Yes. A cock ring, penis ring and cockring are the same thing: a ring worn around the base of the penis, or around the penis and testicles.
How long can I wear a cock ring?
No more than 20 to 30 minutes at a time, and 20 minutes for a metal ring. Never sleep in one.
Do cock rings stretch?
Metal rings do not. Silicone rings stretch, but the suppliers of ours do not state how far, so check the opening on each listing.
Cock rings to compare
-
Polished Metal Cock Ring – 40, 45 or 50 mm
£24.99 Choose size This product has multiple variants. The options may be chosen on the product page -
Remote Vibrating Cock Ring for Couples – 10 Modes, Two Motors
£32.99 -
Tapered Metal Penis Ring – 5 Sizes
£19.99 Choose size This product has multiple variants. The options may be chosen on the product page
Browse every cock ring in the shop, read cock ring sizes and safety, or keep reading: all our guides.