ITEM NAME:10 Pcs 40mm x 44mm x 2mm Nitrile Rubber Sealing O Ring Gasket Washer H2J9 10 Pcs 40mm x 44mm x 2mm Nitrile Rubber Sealing O Ring Gasket Washer H2J9 Product Name : Nitrile Rubber O Ring;Material : Nitrile Rubber Inside Diameter : 40mm/1.57'';Outside Diameter : 44mm/1.73" Thickness : 2mm/0.08'';Color : Black Weight : 6g Package Content : 10 x Nitrile Rubber O Rings Resist oils, hydraulic fluid and water. Flexible nitrile rubber O ring seal. These O ring are used on automotive components, machinery components, medicial and bathroom facilities, househole electrical appliances and electronic instruments, etc. Note:Light shooting 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.