A testicle cuff is a ring-shaped device to restrain a testicle within the scrotum (i.e., when closed it does not allow the testicle to pass through it); they come in pairs and are one of many different gadgets for restraining the male genitalia. They are not to be confused with handcuffs, which have a more widespread use in restraining the hands and wrists. Since testicles are generally ellipsoid in shape you can lock a pair of testicle cuffs around the top end of the testicles, and they will not slip off around the wider middle.
The choice to have oneself restrained about a sensitive area such as the testicles may stem from several sexual desires. Testicle cuffs can be part of cock and ball torture and other parts of the BDSM culture. (BDSM is short for BD DS SM which is short for bondage, discipline, domination, submission, and sadomasochism)
Some men enjoy the feeling of being 'owned', and some people enjoy the
feeling of 'owning' their partners. Making the man wear testicle cuffs
gives a sense that his sexual organs belong to his partner. Equally, there
is a certain level of humiliation inherent in the devices, and some people
are turned on by humiliation. Finally, cuffs may form part of a sexual fetish of the wearer or his partner. Fetishes can range from the
fetishised object just being a 'turn on', through to it
replacing conventional sex altogether. Corsets and latex are examples of more common fetishes.Motivations