Base-ring chastity lock (doubles as cock ring·4 base rings)

Unlike a chastity device that locks the penis inside a cage, this set locks the base instead. The supplier also describes it not as something that prevents masturbation or intercourse, but as a tool that lengthens the time to ejaculation the way a cock ring does. The set contains one shaft ring, four base rings, one mini padlock with two keys, one locking pin, and five plastic numbered seals.

It locks the base instead of caging you

There is no cage, so the shape stays visible and the whole thing stays small. What it does instead is squeeze at the base and slow down how fast blood drains away. It is built to combine the sense of control of a chastity device with the effect of a cock ring, so it is not meant for 24 hour wear over long stretches.

Four base rings are included

With a product that ships a single ring, one wrong size makes it unusable. This set includes four, so you can try them on and keep the one that fits. Too loose and the lock slides down, too tight and you go numb, so the right size is the one that still leaves room for a fingertip between the ring and your skin once it is on.

A key lock and a numbered seal

The metal padlock opens and closes with the two keys. On top of that, five plastic numbered seals are included, and once one is closed it can only be removed by cutting it. If your partner writes down the number on the seal, they can tell whether it was opened in secret, which is how this is used in relationships at a distance.

Before you use it

With anything that constricts, time is the most important safety limit. Do not go past 30 minutes at a time, and remove it immediately if you feel numbness or see the color darken. Do not put it on after drinking, because dulled sensation makes it easy to miss the warning signs. The numbered seals are consumables that get cut off, so you will need more once they run out, and it is safer to keep a cutting tool within reach in case you have to get it off in a hurry.