_x005F_x000D__x005F_x000D_This item is well made of premium steel with finish for durable and practical use. These items are used to calibrate digital scale so as to weight things more accurately.This precession calibration set has all of the weights you will need and more It is suitable for general laboratory, commercial, and educational use._x005F_x000D__x005F_x000D_Feature_x005F_x000D__x005F_x000D_- Color: As shown._x005F_x000D_- Material: Steel._x005F_x000D_- Package: 100g x 1+50g x 1+20g x 2+10g x 1+5g x 1+ Nipper x 1._x005F_x000D_- Made of steel chrome, this weights are absolutely not rust and defect free._x005F_x000D_- Smooth surface :The tweezers is convenient to hold all of the weights for quick easy access._x005F_x000D_- Quality craftsmanship gives you peace of mind about an accurate scale._x005F_x000D_- Perfect for ensuring a properly calibrated scale._x005F_x000D_- This is a must have for anyone with a pocket scale._x005F_x000D_- Suitable for general laboratory, commercial, and educational use.Packing list: 1 x set of Precision Steel Scale Weight Kit Class Calibration Weights(5g 10g 2x20g 50g 100g)