Rubber, 495, 36 sizes Professional or home use. No pollution, no radiation, no smell, environmental protection. Heavy-duty rubber rings can be used in applications requiring higher resistance and higher temperatures than NBR. Suitable for Automotive, Automotive, Garage, , , Workshop, Repair, Air and Gas Connections, Automotive, Doors and Windows, Appliances, Bearings, Pumps, Carriages, etc. Vehicles, Appliances, Accessories, Air Conditioning Manifolds and more The O-Ring Kit is packaged in a bayonet snap-on clear plastic case for identification purposes. Material: Rubber Color: Green+black : 270pcs green rubber O-ring +225 black rubber O-ring Type size: 36 sizes (as shown in the picture) Packaging : 495pcs 270pcs Sealing ring: (Size & ) 7/32 inch x 1/16 inch 20pc 7/16 inch x 5/64 inch 15pc 1/4 inch x 1/16 inch 20pc 7/16 inch x 3/32 inch 15pc 9/32 inch x 5/64 inch 20pc 1/2 inch x 5/64 inch 15pc 5/16 inch x 1/16 inch 20pc 9/16 inch x 1/16 inch 10pc 5/16 inch x 5/64 inch 20pc 9/16 inch x 3/32 inch 10pc 5/16 inch x 5/64 inch 20pc 5/8 inch x 5/64 inch 10pc 11/32 inch x 5/64 inch 20pc 11/16 inch x 1/ 16 inch 10pc 3/8 inch x 5/64 inch 10pc 11/16 inch x 1/8 inch 10pc 7/16 inch x 1/16 inch 15pc 11/16 inch x 5/ 64 inch 10pc 225pcs Sealing ring: ( & Size) 20 Pc - 3 x 1mm 20 Pc - 4 x 1mm 20 Pc - 4.5 x 2mm 20 Pc - 5 x 2mm 20 Pc - 6 x 2mm 20 Pc - 6 x 2.5mm 20 Pc - 6 x 3mm 20 Pc - 7 x 2mm 20 Pc - 8 x 2mm 5 Pc - 9 x 2mm 5 Pc - 10 x 2mm 5 Pc -12 x 3mm 5 Pc - 13 x 3mm 5 Pc - 14 x 2.5mm 5 Pc - 17 x 2.5mm 5 Pc - 18 x 4mmSealing ring 5 Pc - 20 x 2mm 5 Pc - 22 x 2mm Package Contents: 1 Set * Rubber O-Rings (495pcs) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.