Features: 1.Assortment O-Rings with convenient resealable plastic case 2.Total 18 most popular used O-ring Sizes 3.Hydrogenated Nitrile Butadiene Rubber (HNBR), also knowns as Highly Saturated Nitrile (HSN) is special class of nitrile rubber (NBR) and is for mission criticals applications 4.Suitable for high dynamic loads and is abrasion resistant 5.Anti-high temperature and corrosion resistance Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description: 1.Shape: O-ring 2.Properties: corrosion resistance, high temperature resistance, wear resistance 3.Specifications: purple, green includes: 270 pcs Air Conditioning Rubber Seal O Rings