Hexagonal wet film comb Used to measure the thickness of wet paint on the surface of the newly painted layer of chemicals, adhesives, architectural coatings, measure color paints, varnishes and other coatings in the construction of the tool coating thickness. Size: 25-3000um Made of stainless steel Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.