Cock rings

What a cock ring does. A ring sits at the base of the penis, or the base of the penis and scrotum. It gently slows blood from leaving the erection, which many people find makes an erection feel firmer and last a little longer. A vibrating ring adds a motor, usually on the top, which also stimulates a partner during sex.

Fit first. A ring should feel snug, never painful. Take it off after 20–30 minutes, or straight away if you notice numbness, coldness or pain. A ring you can't remove easily is the wrong size. Stretchy silicone is the forgiving place to start, because it gives if the size is slightly off. That's why the Je Joue Silicone Cock Ring Trio comes in three stretch levels.

Silicone or vibrating. A plain silicone ring is simple, quiet and inexpensive. A vibrating ring is for when you want the ring to do something for both partners. The We-Vibe Verge has a pad that rests against the perineum. The We-Vibe Pivot and Lovense Diamo pair with an app, so either partner can change the vibration. The Je Joue Couples Collection pairs the Mio vibrating ring with a G-spot bullet, which makes it a good gift.

Solo or partnered. Rings work on their own for solo use, though most people buy them for partnered sex. On a vibrating ring, the motor's position decides who feels it most: on top it reaches the clitoris during penetration, and underneath it reaches the scrotum or perineum.

Lube and care. Use water-based lubricant with silicone rings. A little lube on the inside makes a ring easier to put on and take off. Wash with warm water and mild unscented soap after each use, and dry fully.

Who should check first. If you have a blood-clotting condition, take blood thinners, or have reduced sensation in the genitals, ask a doctor before using any ring.