ITEM NAME:66mm x 72mm x 3mm, brick red Industrial Silicone O Ring Seal ring A5S8 66mm x 72mm x 3mm, brick red Industrial Silicone O Ring Seal ring A5S8 Product Name: O Ring Material: silicone Inner diameter: 66 mm Outer diameter: 72 mm Thickness: 3 mm Color: Fire red Weight: 3 G Package contents: 1 x O 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.