990pcs /Set NBR O-Ring Kit 20 Sizes Metric Nitrile Rubber Sealing Rings for High Pressure Washer, Automotive, Plumbing & Industrial Seals(Black)

1. These O-rings are manufactured from Nitrile-Butadiene Rubber (NBR), a material known for its good resistance to oils, fuels, and many chemicals, making it a versatile choice for general-purpose sealing tasks.
2. The kit contains a total of 990 O-rings, divided across 20 different metric sizes. This wide assortment ensures you have the right size on hand for numerous repair and maintenance projects.
3. All O-rings are neatly organized and packed in a transparent, compartmentalized storage box. This design is lightweight and makes size identification and selection quick and easy, while also keeping the rings tidy and protected.
4. The O-rings feature a smooth surface finish without noticeable burrs. This quality is important for achieving an effective and reliable seal in applications.
5. This versatile O-ring kit is suitable for use in various sealing scenarios. Common applications include maintenance for high-pressure washers, pneumatic tools, and general gas or fluid line sealing in automotive, plumbing, and DIY projects.