4 1/8″ high. Iron body. Iron shackle. The drop rotates only in anti-clock wise direction and it’s rotation is restricted by the two small buttons. The left button is fixed and the right button can be pushed to let the drop rotate to reveal the actual key hole. The spring below the button which keeps the button upward is so strong that it can not be pushed easily and one can not judge that any of these two buttons can be pushed.