These high-quality leather cuffs use a buckle system to keep them safely on your partner. The cuffs are 2" wide and reinforced with another 1" strap. The wrist cuffs are sized 9" in length (4.5" in diameter) and the ankle cuffs are sized 11.5" in length (5.75" in diameter). Locks are not included and the cuffs come in pairs.