Uxcell Rubber Oil Seal O Rings Gaskets Washers (10 Piece), Red, 16mm x 2.5mm Product name : Oil seal O ring; material : rubber External diameter : 16Mm/0. 6''; inner diameter : 11Mm/0. 4'' Thickness : 2. 5Mm/0. 1a; color : Red Weight : 3G Package Content : 10 x Oil seal O ring