Specifications： Made of high quality Hydrogel. Easy to use, just sitck to the placement of abs belt. Every pad could serve 20-30 times if protected carefully. with well-sealed package. Clean skin before using the gel pads, sweat and dirty would affect the adhesion and service life. Please rinse or apply some water to clean the gel pads, and let it air dry, then attach it to the plasticboard for next usage, which could restore the cohesive and service life. Keep them in shade and cool place from the touch of children. Color: Clear Material: Gel Size: 6*4cm Packing: there are two pieces in each sealed bag Package Include: 2/6/12/18Pcs(1/3/6/9bags) per set Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.