Uxcell Rubber Oil Seal O Shaped Rings Sealing Gasket Washers (10 Piece), Black, 10mm x 2mm Product name : O ring; material : rubber Color : Black; outside diameter : 10Mm/0. 39" Inside diameter : 6Mm/0. 2"; thickness : 2Mm/0. 08" Weight : 2G Package Content : 10 pcs x O rings