QP OIML Class M1 1000g calibration weights set comes with 8 pieces of calibration weights, including 500g*1, 200g*1, 100g*2, 50g*1, 20g*2, 10g*1 and tweezers*1. Calibration weights are made of stainless steel with chrome-plated and mirror-polished surfaces, which are precise and durable. Multiple protection methods make the calibration weights set free from worrying about long distance transportation. QP 1000g calibration weights set is suitable for laboratory, industrial, commercial and other uses, and also easily applied to electronic scales, pocket scales, jewelry scales, food scales, milligram scales, precision balances etc.