Steel Chrome Standard Weight Set (Chrome Plating on Surface) Best craftsmanship, durable and economic Product precision class: M2 Packed in box True OIML Class M2 Calibration Weight KIT Includes: (1) 50g, (2) 20g, (1) 10g, (1) 5g, (2) 2g, (1) 1g, (1) 500mg, (2) 200mg, (1) 100mg, (1) 50mg, (2) 20mg, (1) 10mg, (1) Tweezers True 42 Calibration weights are used to keep your scale weighing properly. Use these weights to make sure you always get the best and most accurate results ever time. This kit is best value for money in calibration weights category. Made with precision in scientific labs for the convenience of scientist and labs. . This WEIGHT KIT, Includes: (1) 50g, (2) 20g, (1) 10g, (1) 5g, (2) 2g, (1) 1g, (1) 500mg, (2) 200mg, (1) 100mg, (1) 50mg, (2) 20mg, (1) 10mg, (1) tweezers