This device was created in 1830 to prevent masturbation, which was considered a sin and believed to disrupt the body's normal functions. Similar to the braces worn by athletes, it is made of hard material that is secured with a belt, while the lock is held by another person. It traps the penis and testicles, with small holes allowing urination, but prohibits erection.

One of the most advanced models from the 1850s included a special ice holder, ensuring even greater effectiveness.