The Latex/Rubber Foot Ankle Cuffs are ideal for both men and women. They have adjustable metal buckle fastenings with the circumference adjustable up to 12.5 inches. Each cuff also has a D-ring. The cuffs attach to the D-rings via a carabine hook. When wearing these ankle restraints, the sub will not be able to move very freely as the width between each restraint is only 4 inches.