The Scrotum Electrode is especially designed for use around the scrotum sac only. The Scrotum Electrode is a single electrode, which means it requires another e-stim device to complete the erotic electro circuit. It is a perfect complement to the Electro-Flex Penile Ring , the Electro-Flex Anal Plug or The Sparkler.The advantages of the Scrotum Electrode are Its advantages are in its cloth construction which allows for comfort even during long periods of use. It is also shape conforming to the scrotum sack which allows for increased focusing capability which maximizes the Erotic Electro Stimulation effect. The durable cloth strap is made of a burgundy colored nylon blend, with a black plastic buckle that contains a metal conducting plate. One size fits all.The Scrotum Electrode is for use around the scrotum sack only. Application to the penile shaft can cause hot spots which can interfere with the Erotic Electro Stimulation effect, due to gaps caused by the non-conforming metal plate. Complete contact must be maintained at all times to maximize the Erotic Electro Stimulation effect.As with all P.E.S. Products, we suggest the proper lubrication be used. For this electrode we suggest a water soluble lubricant to better protect the cloth components. Glycerine based lubricants are also acceptable. Do not use lubricants with silicone ingredients. Silicone is an insulator which effects conductivity.