This product is a precision measuring instrument named "ELEKTRO COMPAR" manufactured by FEINMESSZEUGFABRIK SUHL. The accuracy of this tool is 1 micrometer (0.001 mm), which allows the user to accurately measure dimensions. Its diameter is 28 mm and its length is 170 mm. This product has been technically checked and confirmed in terms of quality. Its dimensions are 170 x 85 x 28 mm.