Specification Brand : Huanyu BulletPoint1 : Grade: F1 Class BulletPoint2 : 24pcs/set BulletPoint3 : Range:1mg-500g 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 : 8695682198910 ItemName : Huanyu Calibration Weights F1 Grade 304 Stainless Steel Digital Scale Calibration Weight Kit Set,24 pcs 1mg-500g ItemTypeKeyword : calibration-weights Manufacturer : Huanyu Material : Other PartNumber : F1 ProductDescription : Huanyu Technical Datas Grade: F1 Class Density = 7.85g / cm3 Susceptibility ?0.05