Specification Brand : Algrium BulletPoint1 : This is a porcelain media that has no abrasive in it. It is used to polish all materials. BulletPoint2 : It can be used as a second step or used alone when only a polish is required. BulletPoint3 : Can be used in all types of equipment. BulletPoint4 : *** Caution *** I would not recommend using this product when brand new for the polish stage. Before using, I would recommend running the media in the tumbler with water for a few hours to smooth out any sharp edges. BulletPoint5 : Use At 80-90 Psi Max Color : Black CompatibleMaterial1 : Metal CompatibleMaterial2 : Glass ExternallyAssignedProductIdentifier : 4514277485065 ExternallyAssignedProductIdentifier1 : 0607174138906 ExternallyAssignedProductIdentifier2 : 607174138906 ItemDisplayWeight : 3 pounds ItemName : 3 Lb. 5 mm Polishing Sphere Ceramic Porcelain Tumbling Media Non-Abrasive ItemPackageQuantity : 1 ItemTypeKeyword : abrasive-tumbling-media Manufacturer : Algrium Material : Ceramic NumberOfItems : 1 PartNumber : 4514277485065 ProductDescription : Product Specifications: *Manufacture: Manufactured in USA *Model: P Polish White Non-Abrasive *"Note: Coin in picture not included, for scale purposes only." ProductSiteLaunchDate : 2019-12-22T22:48:35.513Z UnspscCode : 27110000