A chastity cage is a small device worn around the penis and testicles that restricts access to the penis. It is usually made from plastic, silicone, or stainless steel and may have a locking mechanism.
It is commonly used for:
* Consensual sexual play/BDSM
* Temporarily preventing erections or sexual stimulation
* Exploring sexual restraint between consenting adults
For safety, it should be properly sized, kept clean, and removed if there is pain, numbness, swelling, discoloration, or difficulty urinating.