Our replacement gel pad Hip abs simulator works very well and helps stimulate your muscle contractions when doing a Hip workout. EMS ABS Trainer Waist Trimmer Belt ABS Toner Body Muscle Trainer ABS Stimulator. ADHESIVE GEL PADS - These gel pads are made of high-quality hydrogel self-explanatory to use just tear off the two protective layers then stick them to the placement of your belt. The gel pad needs to be replaced regularly every pad could serve 20-30 times. HOW TO MAINTAIN - Please rinse the pads after usage then let them air dry then attach them to the original plastic board for the next usage which could restore the cohesive and service life.