Material: This Wet Film Comb is made of stainless steel, so having excellent . You can use it with peace of mind. Reusable: This accuracy formed stainless steel wet film comb is long lasting and reusable and is supplied in a range of thicknesses measuring up to 3000um. A great choice . Easy to use: Practical and convenient, easy to operate. The interval division is detailed and having high measuring accuracy. Meet your needs. Application: It is a great tool to measure the coating thickness of paint, varnish, etc.. Bring you a new and different using feeling. Easy to take: With a black case for protecting the wet film comb and easy to carry. You can take it to the place that you need. Comb gauge measuring range in detail: 25, 50, 75, 100, 125, 150, 175, 200, 225, 275, 300, 350, 400, 450, 500, 550, 600, 650, 700, 750, 800, 850, 900, 1000, 1100, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000um Product weight:35g Side length:40mm/1.57inch Method of use:All kinds of coating after construction, immediately put the wet film thickness gauge stable vertical on the smooth of wet film coating, the wet film thickness gauge removing from the wet film, wet film thickness can be measured. The wet film thickness should be between the shortest tooth and adjacent that is not dipped in the wet film.The same method is used to measure twice in different locations for obtaining a certain range of representative results. After use, the wet film thickness gauge is cleaned and dried. Colour:As Shown Material:stainless steel Package Contents: 10 * High Accuracy Thickness Gauge Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.