... the Hard Disk industry ,free from silicone, amides or DOP, low in both particles and ion content ... free from organic contaminants such as silicone ,amide or DOP . The pointed ,non-abrasive foam head ... ESD performance ,it can protect the sensitive components or parts .And the handle won’t produce ... in the electronics, semiconductor, hard disk drive, LCD,PCB,SMT, IC, medical and biotech industry . Packing ...