ITEM NAME:10 Pcs Black Nitrile Rubber O Ring Grommets Seal 12mm x 22mm x 5mm O8C8 10 Pcs Black Nitrile Rubber O Ring Grommets Seal 12mm x 22mm x 5mm O8C8 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, household electrical appliances and electronic instruments, etc. Product Name : Nitrile Rubber O Ring Material : Nitrile Rubber Inside Diameter : 12mm/0.47" Outside Diameter : 22mm/0.87" Thickness : 5mm/0.2" Color : Black Weight : 13g Package Content : 10 x Nitrile Rubber O Rings 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..Flexible nitrile rubber O ring seal. Material : Nitrile Rubber. Color : Black.