These high quality heavy ankle cuffs will bring you to your knees. There are 16 pointed rivets on each shackle. Touching is forbidden here. They are closed with flush Allen screws on the hinges. The shape is round with an inner diameter of 78 mm. The height is 40 mm and the thickness is 8 mm. The total weight is approx. 1850 grams. Material: Polished stainless steel. You can find more steel restraints in our shop