ITEM NAME:20 pcs rubber O-type sealing ring 6 * 1.5 * 9mm J9A1 20 pcs rubber O-type sealing ring 6 * 1.5 * 9mm J9A1 Product Name: O-ring; Inside dia: 6 mm Thickness: 1.5 mm Outside diameter: 9 mm Material: rubber Weight: 2 g Color: Black; Package Contents: 20 x O-rings Only the above package content, other products are not included. 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..Material: rubber. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. Color: Black;. Thickness: 1.5 mm.