ITEM NAME:Red Silicone O Ring Oil Seal Seals Washer 115 x 110 x 2.5mm L7G7 Red Silicone O Ring Oil Seal Seals Washer 115 x 110 x 2.5mm L7G7 Silicone supports a wide temperature range and has excellent resistance to weather and ozone. It fits for vacuum pipes to stop noise and rattling of the tube. Made of silicon and not hot and burned. These are used for dampers, absorbed vibration, and many other uses. Product Name: O Ring Material: silicone Outer diameter: 115mm / 4.5 inch Inner diameter: 110mm / 4.3 inch Thickness: 2.5mm / 0.1 inch Color: Red Package Content: 1 x O Ring Seal ring 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.