1) Applicable to PCB, LCD, SMT, clean room 2) Sizes: 1", 2", 4", 6", 8", ... , etc, so as to improve the yield of electronic products.1) Applicable to breadboard, PCB, LCD, ... SMT, clean room, stainless steel sheet, film for dusting; Semiconductor etc for dusting.2) Sizes: 1 ... available.5) Stable raw meterial, that attests to durability, no ageing, no crumbs, antistatic ...