This item is a set of assorted ring seals for professional or home use. It is made of Hydrogenated Nitrile Butadiene Rubber (HNBR) which features heat-resistant, , pollution free, and for durable and safe use. Package Quantity includes 270 Pieces ring seals assortment in 18 sizes for various uses. Widely used for automobile, electrical appliance, mechanical, industrial, construction, household, and other fields. Feature - Color: Green - Material: Hydrogenated Nitrile Butadiene Rubber (HNBR) - Seals Type: ring - Size (Box): Approx. 20.5 x 10.5 x 3 cm / 8.07 x 4.13 x 1.18 inch (LxWxH) - Premium Hydrogenated Nitrile Butadiene Rubber (HNBR), heat-resistant, supper elasticity, , pollution free, and for durable and safe use. - 18 kinds of different sizes to meet different requirements. - Package Quantity: 270pcs assorted rings - Stable and durable performance. Appropriate mechanical strength, including expansion strength, elongation and tensile strength, etc. Full of elasticity and resilience. - With Plastic Box for convenient access and storage. - Wide application. Suitable for car, door, window, electric appliance, bearing, pump, carrier roller Auto, Home Appliances, Fittings, A/C Manifold and more. - Package includes: 20pcs 7/32"×1/16"or (5.29×1.78) 20pcs 1/4"×1/16"or (6.07×1.78) 20pcs 6.8×1.9 20pcs 5/16"×1/16"or (7.65×1.78) 20pcs 7.8×1.9 20pcs 8×2 20pcs 8.8×1.9 15pcs 7/16"×1/16"or (10.82×1.78) 15pcs 7/16"×3/32"or (10.77×2.62) 15pcs 11×2 15pcs 12×2 10pcs 13.9×1.8 10pcs 9/16"×3/32"or (13.95×2.62) 10pcs 14×2 10pcs 15×2 10pcs 17×2 10pcs 11/16"×1/16"or (17.17×1.78) 10pcs 11/16"×1/8"or (17.04×3.53) Package list: 1 x 270pcs 18 Sizes Ring Rubber Insulation Gasket Washer Seals Car Air Conditioning Compressor Seals Vehicle Auto Repair Tool Kit Assortment Kit (Green)