The 1KGWGT is a 1000 gram calibration weight for checking out and calibrating scales. These weights are calibrated to inside ±0.16g accuracy (OIML Class M2). Check your scale’s manual before purchasing to be sure you buy the proper weight on your scale. Such a lot scale’s require a specific calibration weight to calibrate.
OIML Class M2: ±0.16gm
Sold in my opinion
Easiest for making sure a properly calibrated scale
Quality craftsmanship will provide you with peace of mind about an accurate scale