Ive bought two of these and they are very good for my present need, which is to keep my blanking die in good shape while I stamp out parts. However, there are some points worth knowing if you have other uses planned. First, there is only one rounded edge on one of the long edges radiused to a little over 2mm all the 11 other edges are sharp but not enough to cut skin. The finish is very flat to the touch but is not a mirror finish to the eye however, no marks transfer onto silver, so this is adequate. The dimensions of 8 cm x 8 cm are to the nearest 0.5 mm and the thickness is a little over 19 mm. The steel is hard but not as hard as a triblet, so the edges may take dents if abused. Overall Im pleased with them.