Review on Stainless Portable External Internal Measuring by Mike Snedeker

Product arrived as described. The sensors were completely covered with grease. I understand that this is to preserve steel, but it seemed redundant to me (see photo). Wear gloves on, open the package and have a paper towel handy. The plastic packaging was fragile and tore very easily, almost as if it had been wrapped decades ago (see photo). I can't say anything about the accuracy because there's nothing to measure. I could try to find something and update my review. In general I am satisfied with the purchase. I wanted a set of inexpensive object measurement sensors for CAD modeling and 3D printing and that's what I got.