... Gel Pad is much more convenient to use. Though improving the formula constantly, along with modern Polymer Gel Technology and unique ... non-toxic, no residue or corrosivity.The magic and mystery of Gel Pad are ultimately in the soft solid jelly-like substance .We ... adopt “macromolecule gel technology” and unique producing method ,the Cooling Gel Pad is non-toxic , no corrosion, sort of ...