Buy Sack Strap Online at Good Vibrations Adult Toys for $69.95 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!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.TIP: To increase conductivity and prevent irritation, be sure to use our Shock Therapy Electro-Sex Gel (PD3723-06) with your Shock Therapy purchase.. Purchase Sack Strap and other great sex toys at Good Vibrations Adult Toys with fast discreet shipping. Pay only one shipping cost of $9.90 and free shipping for orders over $75.00.