Featuresr safe and nontoxicr certified by pahs it is harmless and toxic free to the human bodyr r high conductivityr adopt thin and soft silicone imported from japan to fit the contours of the body help the koogeek smart fitness gear to deliver electricity to the abdomen for safe and effective muscle exerciser r excellent adhesivenessr non sticky and highly adhesive it makes you feel comfortable after removing it from the bodyr r sweat absorptionr absorb and evaporate sweat it keeps your