Specification Brand : Twin Pines Trading Post BulletPoint1 : Use in a Tumbler for Shining Metal Parts and Rocks BulletPoint2 : Produces a Smooth Shined Finish BulletPoint3 : Made of Exceptional Quality Plastic - 50% Silica and 50% Resin BulletPoint4 : Suitable for Light Deburring and Smoothing BulletPoint5 : Allows faster deburring and more aggressive removal of metal on a work piece BulletPoint6 : Polyhedrons shapes offer excellent wedging characteristics that reduce/eliminate media lodging in the workpiece CompatibleMaterial : Metal CompatibleMaterial1 : Metal CompatibleMaterial2 : Aluminum CompatibleMaterial3 : Iron CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 0689396870185 ExternallyAssignedProductIdentifier2 : 689396870185 ExternallyAssignedProductIdentifier3 : 00034337413288 IncludedComponents : Polyhedrons Ceramic Media, 90 lbs/cu ft Density, 3/8" Size, 20lbs Weight ItemName : Twin Pines Trading Post Extra Coarse 20 Silicon Carbide Grit - 4 lbs. ItemPackageDimensions_Height : 16 inches ItemPackageDimensions_Length : 13 inches ItemPackageDimensions_Width : 13 inches ItemPackageQuantity : 1 ItemTypeKeyword : abrasive-tumbling-media Manufacturer : MLS Material : Silicon Carbide Material1 : Plastic Material2 : Metal Material3 : Resin ModelName : Polyhedrons Ceramic Media ModelNumber : 41-328 NumberOfItems : 1 PartNumber : 118504 ProductDescription : Silicon carbide 20 mesh grit. Extra extra coarse. For use in industrial large capacity rotary tumblers. For use with rocks and metal. 4 pound quantity. ProductSiteLaunchDate : 2016-03-09T08:00:00.000Z Size : 50lbs SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 27000000