• Complete assortment of 1020 pieces in 20 different metric sizes to cover various sealing needs. • Made of commercial grade nitrile rubber (NBR) with high resistance to oil and heat. • Wide operating temperature range from -40 °C to 120 °C, ideal for industrial and domestic applications. • Includes gaskets with internal diameters from 1 to 25 mm and thicknesses of 1 mm, 2 mm, 2,4 mm, 2,5 mm and 3 mm. • Suitable for sealing faucets, automotive, thermal machinery, pumps, valves, sensors and pressure pipes. • Presented in a sturdy plastic box with detailed labels to organize and locate each size quickly.