Specification Brand : Ohaus BulletPoint : Class 7 Slotted Weights and Slotted Weight Sets are constructed of stainless steel or aluminum 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 30390738 Weight Set ECON 500g-1gM CL7 NonAccrd TR ItemPackageQuantity : 1 ItemTypeKeyword : gage-block-accessories Manufacturer : Ohaus NumberOfItems : 1 PartNumber : 30390738 PowerSourceType : Battery Powered ProductDescription : Ohaus 30390738 Weight Set(14), 500 g-1 g, Class 7, TC ProductSiteLaunchDate : 2017-08-07T13:37:16.817Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111505