Specification Brand : uxcell BulletPoint1 : Product Name : Silicone O Ring;Material : Silicone BulletPoint2 : Outside Diameter : 19mm / 0.75";Inner Diameter : 14mm / 0.55" BulletPoint3 : Thickness : 2.5mm/ 0.1";Color : Red BulletPoint4 : Weight : 3g BulletPoint5 : Package Content : 10 x Silicone O Ring Color : Red ExternallyAssignedProductIdentifier1 : 608641833232 ExternallyAssignedProductIdentifier2 : 0608641833232 ExternallyAssignedProductIdentifier3 : 00608641833232 ItemName : uxcell 19mm x 2.5mm Silicone O Ring Oil Sealing Washers Grommets Red 10 Pcs ItemPackageDimensions_Height : 0.6 centimeters ItemPackageDimensions_Length : 14 centimeters ItemPackageDimensions_Width : 10 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : o-ring-seals Manufacturer : uxcell Material : Silicone ModelNumber : a12041800ux0209 PartNumber : a12041800ux0209 ProductDescription : Made of silicon and not get hot and burn up. Silicone supports a wide range of temperatures and has excellent resistance to weathering and ozone. It fits for vacuum tube to stop noise and rattle of the tube, used in shocks absorbing vibration and many other uses.