I have been using another brand of spice jar friendly spoons and only recently discovered that they were off quite a bit in the measurements. Out they went and enter this Amco set. I measured each and every one against a very reliable set and they were right on target. They also sit perfectly on the coutertop when filled, which is wonderful. My only complaint is that the sizes imprinted on the handle are not etched deeply enough and it is not easy to read in 4 of the 6 spoons, but that is not critical, just a little annoying.