French-inspired, this is refined torture! Wrists can be locked in front, or behind the back Very severe. Impossible to get out of, even if you might have the key. The effect of these locked on your wrist builds the longer you are wearing them. A slow painful way to hold your prisoner. Wrists then can be attached to other parts of the body or anchored to a post by the welded ring at the end of the cuffs. Hex key locking closure. Cross the wrist, for a slightly less painful position. Lock the wrist Next to each other and you'll feel the strain in your arms and shoulders as well as the pressure on your wrist. Use with caution.