Calibration Weights Set, 17Pcs Grams Precision Weight Test Scale for Checking the Accuracy of Both Pocket and Digital Scale, Jewelry, Suitable Laboratory, Industrial Measurement, Educational

10mg-100g: There are 17 calibration weights in this weight set, with 13 different specifications in total CONVENIENT STORAGE: In addition to the calibration weights, the set is also equipped with tweezers and a plastic storage box for easy use and storage EASY TO GRASP: Our weights are conjoined cylindrical, with raised parts on the upper end. HIGHER STRENGTH: Using No.45 steel material, it has higher strength and resistance to deformation than ordinary steel WIDELY USE: Suitable for general laboratory, industrial measurement, educational purposes, etc.; the allowable error is -0.003 to +0.003 g