uxcell 10pcs 19mm Outside Dia 2.5mm Thickness Industrial Rubber O Rings Seals Product Name : Rubber O Ring;Material : Rubber Inside Diameter : 14mm/ 0.55";Outside Diameter : 19mm/ 0.75" Thickness : 2.5mm/ 0.098";Color : Red Weight : 3g Package Content : 10 x Rubber O Rings