Soft silicone cock ring set with lead wire. These flat rings are each
uni polar. The black part inside is conductive. To achive shock therapy
you need to use both rings together or replace one of the rings by a
self adhesive gel pad. The lead wire has a 2.5 mm jack plug which fits to different power box units.
Make sure that you use enough contact gel to create the best contact with the skin.
Diameter rings: 40 mm. and 50 mm.