The Strict Leather Deluxe Leather Locking Thigh Cuffs are used to provide additional restraint where needed. They can be used to attach wrist cuffs, ankle cuffs, or to anything else. These are high quality leather restraints. Measurements: Adjustable from 15 to 23 inches in circumference. Material: Leather, metal. Note: Shown with wrist cuffs and locks, sold separately.