chastity cage
A device that can be locked onto a person's penis to prevent the wearer from engaging in sexual contact. In many cases, it also makes erection uncomfortable or impossible. Also known as a penis cage. It is used as a sex toy as a method of erotic sexual denial.
Not to be confused with a chastity belt, which serves a similar purpose, but wraps around the wearer's entire waist instead of just the penis.
See also
The following tags implicate this tag: flat_chastity_cage (learn more).