Dealglad 6pc 100g 50g 20g 10g 5g Grams Precision Balance Calibration Scale Weight Set Kit This is a must have for anyone with a pocket scale. This precession calibration set has all of the weights you will need and more Quantity: 1 x 100g,1 x 50g,2 x 20g,1 x 10g, 1 x 5g The tweezers is Convenient to hold all of the weights for quick easy access Permissible Error: +/- 0.003g