Specification Brand : Ohaus BulletPoint : Class 7 Slotted Weights and Slotted Weight Sets are constructed of stainless steel and all surfaces are satin finish and meet or exceed ANSI/ASTM E617 tolerance and design restrictions. Troemner ASTM Class 7 Slotted Weight Sets are supplied in, and protected by, a rack with a carrying handle or in a plastic case with a foam interior. CareInstructions : Hand Wash Only ItemName : Ohaus 30390755 Weight 1P ECON Slot 20g CL7 No Cert TR ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : gage-block-accessories Manufacturer : Ohaus NumberOfItems : 1 PartNumber : 30390755 PowerSourceType : Battery Powered ProductDescription : Ohaus 30390755 Weight, 20 g, Class 7 ProductSiteLaunchDate : 2017-08-07T13:37:47.898Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41000000