Material -- Silicone rubber gaskets washer are made of quality silicone material, which have smooth outside, oxidation resistance and wear resistance, light weight and good insulation can ensure a long time using in bad environment like cold weather, and high humidity areas. This product consists of 30 pieces of nylon washers with the suze refers to D x d c x H. Design -- Silicone rubber gaskets washer are mainly used to reduces friction between the fasteners, keep from leakage, isolates, keep from loosening or dispersion pressure. Temperature resistance -- -60°C-250°C flat washers are perfect for household and commercial appliances, electrical connections, home repair, automotive repair, machine appliances, marine, and other vehicle uses. The washer spacer is an indispensable accessory for daily use and work