Mystim Barry Bite - Bipolar-Stim ClampsThese bi polar electro conductive body clamps create a tingly, lustful pleasure at nipples, lips and various other body regions. Thanks to the fact that every clamp is bi polar always only the tissue in between of the two halfs of the clamp is being stimulated. This means that you can stimulate both nipples at the same time, without any danger of leading electricity through the heart. Thanks to the small screw you can decide if you want Barry to live