Fristaden Lab Analytical Precision After using a scale for over 25 years that finally wore out, we purchased one from another source and it was horrible. So, when we found this one, it appeared to be of a much higher quality. And, it certainly was. We use it for weighing pistons and rods and it has been very accurate. It was a nice surprise to find a weight in the package for use in calibration. However none was needed as it was 100% on mark. I would recommend the product highly. It also arrived on time, and very well packaged. ----- Amazon Customer