1) Applicable to PCB, LCD, SMT, clean room 2) Sizes: 1", 2", 4 ... dust, etc, so as to improve the yield of electronic products.1) Applicable to breadboard, PCB, LCD, SMT, clean room, ... low stickness available.5) Stable raw meterial, that attests to durability, no ageing, no crumbs, antistatic, moisture resistance, ... free.with use of comfortable,rotate smoothl silicone roller and sticky pad and pad holder