Fetish Fantasy Series Shock Therapy Sack Strap. Give your sex life a charge with the incredible Shock Therapy Sack Strap! Perfect for beginners and those new to electro sex, this vinyl ball strap connects to an electro power unit to provide thrilling e-stimulation directly to your most pleasurable spots. The comfortable Sack Strap easily adjusts to fit most sizes with a buckle strap, and featured two electro pads placed strategically under each ball to provide incredible sensations and amazing hands-free stimulation! <br /><br />Choose a setting on the control unit's dial to control the intensity and go from a sensuous tingle to a throbbing tap in an instant. Switch between slow or fast to control the frequency of the shock, and adjust the dial to control the strength of the shock. The compact control unit can also be used alone as a hand massager. To use the control as a hand massager, switch to in mode. The oval centerpiece delivers the shock once your palm touches any other part of the metal. To use the power unit with the straps, switch it to out mode and connect the straps plug in jack. <br /><br />Tip: to increase conductivity and prevent irritation, be sure to use Shock Therapy Electro Sex Gel item number PD372306 with your Shock Therapy purchase. Specifications: batteries included, remote control, multi vibration, shocks. Requires 1 3V CR 2032 battery, included. Materials Vinyl, Metal, ABS Plastic.