These USA Made S&W Leg Irons are in a somewhat 'Oval' Shape to better and more comfortably fit around the natural shape of your ankles.... even with combat boots on. Fully adjustable with ratchets. Has a 16 inch chain which gives the boy the ability to move around the house while he's doing his chores or shuffle into the bar while in tow. Double locks for safety and comes with 2 keys. Our favorites as to the leg irons still available on the market.