Slendertone pack of 3 abs gel pads slendertones no mess no fuss medical grade replacement gel pads are suitable for all slendertone abdominal toning belts abs7 abs6 abs5 abs3 and gymbody plus these replacement gel pads known as hydrogel electrodes are comprised of a three layer conductive medium to deliver the electric current needed for slendertone toning garments it ensures comfortable delivery of the therapy to the correct nerve and surrounding areas