{WIDE APPLICATION}: The Rubber O Ring Set is an essential toolkit for a variety of applications, including pressure washers, automobiles, faucet plumbing, hose nozzles, sinks, filters, hydraulics, engines, machinery bearings, pumps, boats, oil systems, gas control valves, and kitchen and bathroom water fittings. This versatile set is ideal for both professional maintenance workers and DIY enthusiasts, providing reliable solutions for sealing leaks and ensuring optimal performance in various systems. {MULTIPLE SIZE}: This comprehensive O-ring assortment kit includes 1120 pieces in 24 commonly used sizes, featuring outer diameters ranging from 6mm to 28mm and thicknesses of 1.5mm, 2.4mm, and 3.1mm. The diverse size options ensure that you have the right O-ring for nearly any sealing need, making it an indispensable addition to your repair toolkit. {MATERIAL}: Crafted from high-quality commercial-grade nitrile (NBR, Buna-N), these O-rings exhibit excellent resistance to oil, high temperatures, and low temperatures, withstanding a working temperature range of -40?/-40? to 120?/248?. Their superior elasticity, ozone resistance, and weather resistance make them suitable for a wide range of environments and applications. {CONVENIENT STORAGE}: The assorted O-rings are organized in a sturdy plastic storage box, with each size clearly labeled for easy identification and retrieval. This thoughtful design allows you to keep your workspace tidy and ensures you can quickly find the right O-ring when needed, saving you time and hassle during repairs.