17Pcs 211.1g 10mg-100g Set Grams Precision Calibration Weight Digital Scale Ideal for use with many portable and pocket scales. Suitable for general laboratory, commercial and educational use. See your scales instruction manual for recommended calibration weight. top quality, largest selection, best value. Smooth surface, compact, high-performance design. Specifications: Permissible Error: /- 0. 003gQuantity: 1 x 100g,1 x 50g,2 x 20g,1 x 10g, 1 x 5g, 2x2g, 1x 1g, 1x500mg, 2x200mg, 1 x 100mg, 1 x 50mg, 2 x 20mg, 1 x 10mgColor: Silvertotal Set of Weights:211.1g Package included: 1 x Plastic Storage Case1 x Tweezer1 x 100g Calibration Weight1 x 50g Calibration Weight2 x 20g Calibration Weights1 x 10g Calibration Weight1 x 5g Calibration Weight2x2g Calibration Weights1x 1g Calibration Weight1x500mgCalibration Weight2x200mg Calibration Weights1 x 100mg Calibration Weight1 x 50mg Calibration Weight2 x 20mg Calibration Weights1 x 10mg Calibration Weight