The electrode pads provided are designed to be re-usable, meaning you can take them off and then reapply them. Just be sure to pop them back onto the film they arrived attached to when you are not wearing them. Residual oil or moisture on your skin will start to erode the stickiness of your pads, so if you are in and out of the shower several times, or sweating, make sure to dry your back completely before reapplying.You can 'revive' the stickiness of your pads by brushing over with a damp fabric cloth. Additional electrode pads are also available for purchase.