Slendertone Replacement Gel Pads for All Slendertone Abdominal Belts - 10 Sets (30 Single Gel Pads) Replacement gel pads designed for Slendertone toning belts Manufactured to medical-grade and FDA-approved standards Pads last for an average of 20 to 30 Slendertone sessions Hypo-allergenic Self-adhesive