These ankle restraints are another fine example of the exquisite craftsmanship of Spartacus products. Made out of high grade, high quality black leather, they have a matte, smooth finish and are lined with a luxuriously soft black fleece. The hardwar e on these restraints features a silver D-Ring with a silver round ring attached. The benefits of this being that you are free to swivel and turn your love object around without much hassle. These ankle restraints have a special, extra feature that t he regular ankle restraints do not. They feature a special buckle that allows you to be able to fit any small lock in to keep the restraints securely in place. The restraints adjust from 5 1/2" to 13". (Ankle cuffs