What is this?The metric Nitrile Rubber O Ring Assortment Kit can prevent leaks in fuel or water pipes, machinery, hydraulic, and pneumatic connections. It is great for DIY maintenance of sealing engine components, faucets, pipes, pumps, high-pressure washers, solenoid valves, instruments, sensors, mechanical bearings, and pressure pipelines.What will I get?We offer 6 sizes of Nitrile O-rings: 6x3x1.5mm (0.23x0.12x0.06"), 7x4x1.5mm (0.27x0.15x0.06"), 8x5x1.5mm (0.31x0.2x0.06"), 9x6x1.5mm (0.35x0.23x0.06"), 10x7x1.5mm (0.4x0.3x0.06"), 11x8x1.5mm (0.43x0.31x0.06")In the package of: 60 x Nitrile rubber o-rings (10pcs per size)Are there any advantages of the product?The Nitrile O-ring is made of nitrile rubber, offering excellent waterproof and oil-resistant properties, heat resistance, corrosion resistance, and wear resistance, ensuring a reliable seal. It has good heat resistance: -4 to 248 / -20 to 120 .How to use it?Clean the sealing surfaces thoroughly to remove any dirt, debris, or old O-ring material. Ensure that the groove where the O-ring will be placed is free of damage that could cause tearing.What should I notice?1. Regularly inspect the O-ring for signs of wear, damage, or degradation. 2. Please select the right diameter.