Leg irons are restraints used to immobilize a person's legs. They can also be referred to by other names like leg cuffs, ankle cuffs, leg shackles, or foot shackles. In some contexts, they are called fetters, which refers to any type of restraint or shackle used to confine a person's movements. Other synonyms for leg irons include metal restraints, handcuffs, iron shoes, hobble cuffs, and leg manacles. These restraints have long been used as a form of punishment, often in prisons and courtrooms. They symbolize the loss of freedom and movement, and are often depicted in movies and literature as a symbol of oppression and injustice.