BETTERFORM 1/5pcs Correction Tool 1g/2g/5g/10g/20g/50g/100g Grams Chrome Plating Scale Weights Sets Weighing Scales Accurate Calibration Set

Permissible error: ± 0.003gQuantity: 5pcs (20g, 10g, 5g, 2g, 1g) or 1pc/50g or 1pc/100gColor: SilverBrand new with high qualityMaterial: nickel-plated steelFeatures:1.Top quality, largest selection, best value2.Compact, high-performance design3.This is a must have for anyone with a pocket scale.4.This accurate calibration set has all of the weights you will need and more!Package included:5pcs x calibration set(20g, 10g, 5g, 2g, 1g) or 1pc 50g or 1pc 100g(As your choose)Notice:1.1cm=10mm=0.39inch.2.Please allow 1-2cm error due to manual measurement and make sure you do not mind before ordering.3.Please understand that colors may exist chromatic aberration as the different placement of pictures.