Knee stocks are often used as a restraint device to limit movement or hold a prisoner in place. However, there are many synonyms for knee stocks, including leg irons, shackles, and handcuffs. Leg irons are used to secure the ankles and prevent movement, while shackles are used to secure both the hands and feet. Handcuffs are specifically designed to restrain the wrists and are often used in conjunction with ankle restraints. Other synonyms for knee stocks might include hobbles, fetters, chains, or manacles. Regardless of the terminology used, these devices are intended to immobilize a person and restrict their movement.