Electrify yourself or your partner with the intense stimulation of the Vigor II. These penis-oriented estim accessories are the perfect way to create all new sensations in the penis. Adjust one of the silicone ties around your cock and balls to your desired tightness, followed by the second one around the frenulum. Plug in a single set of leads to your loop ties to experience pulsing pleasure all down your shaft, from the sensitive area beneath the head of your cock to your constricted cock and balls. Experience various settings from your Zeus Power Box as the current courses from the red lead down to the black. One size fits most with these adjustable ties, perfect for use as a regular cock ring as well! Measurements: Inner diameter of loop adjusts up to 3 inches. Material Silicone. Leads not included. Works with most Zeus Electrosex Power Boxes (not included).