Zewa Reusable Electrotherapy Replacement Conductive Pads 2″ x 2″.Zewa Reusable, 2″ x 2″ Replacement Conductive Pads For SpaBuddy Relax Back-Belt Model 21017. Replacement Conductive Pads (Electrodes) are compatible with Zewa’s SpaBuddy Relax back pain relief system. These self-sticking pads are reusable but need to be replaced occasionally when the adhesive wears down. – 2″ x 2″ Reusable. – Multi-stick gel for use with TENS Belts only. – Compatible with Body Relax II and SpaBuddy Relax. – Self-sticking and long lasting. – Includes 4 self-sticking reusable pads. – Made in USA.