These cuffs are great basic leather cuffs. They" re lined in smooth suede and constructed of soft strong leather with bright steel. They" re both durable and comfortable. The heavy duty O ring attached to each cuff makes attachment easy for more interesting bondage play. Measurements: Ankle Cuffs: 2 inches wide and 8.25 to 11.5 inches in circumference; Wrist Cuffs: 2 inches wide and 5.5 to 9.25 inches in circumference