240pcs 6\8\10\12\14\16\18\20\22\24\27\30mm Metal Rubber Seal Oil Ring Drain Plug Gasket Kit Feature:High quality built-in NBR, better sealing performance. It can be used in extreme conditions, maximum pressure 40MPa, maximum working range minus 25 degrees Celsius, up to 100 degrees Celsius. It is suitable for pipe connections, screw plugs and pressure system of mechanical equipment. Prevent leakage of water, oil, fuel, etc.12 different specifications to meet your needs with different sizes. Specification:Material: Metal & NBR Weight: 745g / 26.28oz Working Pressure: -25 - +100°C Working Temperature: 40MPa/5800psi ()Working Medium: Oil Inner Diameter: 6\8\10\12\14\16\18\20\22\24\27\30mm/0.24\0.31\0.39\0.47\0.55\0.63\0.71\0.79\0.87\0.94\1.06\1.18inPackage List:240*Ring (1 box,12*20)Note:The actual color of the product may be different from the picture due to the light.