silicone o-rings 1.material:SILICON 2.working.temperature:-40c~+ ... seal, also can make on your size. 4. Optional color for you of the oil seal, O-Ring and rubber gasket ... O-Ring , rubber gasket is welcomed as well. 6. Apply for: Auto, air condition, machinery, water pumps, valves, furniture, toys, ... , Rubber seal, Rubber gasket, Rubber ring, Sealing ring, Sealing gasket. nice silicone rubber O-rings