Specification Brand : Huanyu BulletPoint1 : Grade: F1 Class BulletPoint2 : 25pcs/set BulletPoint3 : Range:1mg-1kg BulletPoint4 : 【Note 1:】 Before using the weight, use a special cleaning brush and cloth to clean the dirt and other stains on the surface of the weight. BulletPoint5 : 【Note 2:】Do not touch the weight directly by hand. When using weights, please wear special gloves and use special tools to grip the weights. ExternallyAssignedProductIdentifier : 8695682198927 ItemName : Huanyu F1 Grade 304 Stainless Steel Digital Scale Calibration Weights Kit Set, 25 pcs1mg-1kg ItemTypeKeyword : calibration-weights Manufacturer : Huanyu Material : Other PartNumber : F1 ProductDescription : Huanyu Technical Datas Grade: F1 Class Density = 7.85g / cm3 Susceptibility:0.05