Specification Brand : The Tumblers Bench BulletPoint1 : Rubber Seal for 3 lb. Rock Tumbler Barrels / Drum BulletPoint2 : Measures 4-1/16 in diameter and 3/16 height at rim. BulletPoint3 : Does not include metal support disk or bolt. BulletPoint4 : Fits All Tumblers: Compatible with any rock tumbling machine. BulletPoint5 : Easy to Use & Quality Assurance: User-friendly for all skill levels, with dedicated customer support for any issues. Color : Black CpsiaCautionaryStatement1 : choking_hazard_small_parts CpsiaCautionaryStatement2 : no_warning_applicable ExternallyAssignedProductIdentifier1 : 0689298635875 ExternallyAssignedProductIdentifier2 : 689298635875 ItemDisplayDimensions_Diameter : 4.06 inches ItemDisplayDimensions_Height : 0.18 inches ItemDisplayWeight : 1 ounces ItemName : Rubber Drum Seal for Chicago Electric Rock Tumbler ItemPackageDimensions_Height : 0.5 inches ItemPackageDimensions_Length : 6 inches ItemPackageDimensions_Width : 6 inches ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : abrasive-tumbling-media Manufacturer : The Tumblers Bench Material : Rubber ModelNumber : KS1021CM61 NumberOfBoxes : 1 PackageLevel : unit PartNumber : 654 ProductDescription : Rubber seal for rock 3 pound rock tumblers from Chicago Electric / Harbor Freight, Northern and Sears. ProductSiteLaunchDate : 2018-02-04T08:00:00.000Z UnitCount : 1 UnspscCode : 52152100