F1 grade 1mg-2kg stainless steel scale calibraiton weights kit sets, balance weights. Total 27pcs weights, use 304 stainless steel. Packed in aluminium alloy case, with factory’s certificate.
Package included:
1x 1mg weights,            2x 2mg weights
1x 5mg weights,            1x 10mg weights
2x 20mg weights,          1x 50mg weights
1x 100mg weights ,       2x 200mg weights
1x 500mg weights,        1x 1g weights
2x 2g weights,                 1x 5g weights
1x 10g weights,               2x 20g weights
1x 50g weights,               1x 100g weights
2x 200g weights,             1x 500g weights
1x 1kg weights,                2x 2kg weights
1x  tweezer
1x aluminium alloy case1x certificate of calibration(see following samples, as each set is different, the error of each weights is with small difference, but the error is within the maximum perssible errors of F1 weights ).