Features 【Chromium-plated material】: The balance weight is made of chrome-plated material, which has stability and corrosion resistance. 【Multi-specification weights】: This is a set of calibration weights, there are 5 different specifications of calibration weights, 1g / 2g / 5g / 10g / 20g. 【Elaborate Design】: The surface of the weight is chrome-plated, showing a silver luster, well-made and beautiful in appearance. 【Easy to Grasp】: Our weights are one-piece cylindrical shape with a raised part on the upper end, which is easy to grasp. 【Wide Use】: Suitable for laboratory, industrial measurement, educational use, etc.; the allowable error is -0.003 to +0.003 g. Features: 1. The balance weight is made of chrome-plated material, which has stability and corrosion resistance. 2. This is a set of calibration weights, there are 5 different specifications of calibration weights, 1g / 2g / 5g / 10g / 20g. 3. The surface of the weight is chrome-plated, showing a silver luster, well-made and beautiful in appearance. 4. Our weights are one-piece cylindrical shape with a raised part on the upper end, which is easy to grasp. 5. Suitable for laboratory, industrial measurement, educational use, etc.; allowable error is -0.003 to +0.003 g. Specification: Color: Silver Material: Chrome plating Permissible Error: +/-0.003g Item Weight: 1g / 2g / 5g /10g / 20g Package Includes: 1 * 1g Scale Weight 1 * 2g Scale Weight 1 * 5g Scale Weight 1 * 10g Scale Weight 1 * 20g Scale Weight Package List