... edges of drilled or punched holes for wiring, cable, tubing, piping, hoses, air lines, rope ... and structure availableHardness: 30 to 80 Shore A DurometerColors: Black, Transparent. Custom colors available.Material ... Box.UsageAll kinds of cars, machinery, home appliance, electronic products, electric appliance, stationery, computers, power switches, miniature switches, architecture, commodity and A/V ...