ITEM NAME:50 Pcs Red Silicone O Ring Seal Washers 10mm x 6mm x 2mm L2L7 50 Pcs Red Silicone O Ring Seal Washers 10mm x 6mm x 2mm L2L7 High temperature industrial duty red silicone tube dampeners. It fits for vacuum tube to stop noise and rattle of the tube. Made of silicon and not get hot and burn up. These are used in shocks, absorbing vibration, and many other uses. Product Name : O Ring Material : Silicone Outside Diameter : 10mm / 0.39" Inner Diameter : 6mm / 0.24" Thickness : 2mm/ 0.08" Color : Red Weight : 5g Package Content : 50x O Ring 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.