This impressive steel hook can be hooked up to ropes and other bondage equipment, making sure it keeps a strong hold on its wearer. There" s 5 inch of insertable length (the ball and a portion of the hook). The hook then rests against the back, while the ring (1.5 inch in diameter) is used to connect to ropes. The ball measures 1.5 inch in diameter and has a 5 inch circumference. The anal hook weighs.75lbs.