Product name: O-rings Material: rubber Thickness: 1.8 mm / 0.18 cm Outside diameter: 5.6 mm / 0.56 cm Internal diameter: 2 mm / 0.2 cm Color: black Weight: 1 G/ pcs This oil containing O-ring is made of rubber material, round section, easy to install. Feature high and low temperature resistance, UV-resistance, Ozone resistance, abrasion resistance. Applications: of form, of electrical, mechanical, industrial, construction equipment, Prime Furnishing of other field. Content of the shipment: 100 x O-rings Only the above package content, other products are not included. Note: Light 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.