[Product Specification] Thickness Gauge For Metal Roofing And Membrane Roofing Single Double Ply. (The magnet is attracted to it and is well protected from damage. ) [Wide Range of Applications] This Panel & Membrane Gauge Shingle is widely used in building industry, home, pro workshop, measuring sheets of metal as well as corrugated roofing panels. [Easy to Use] This Panel & Membrane Gauge Shingle itself has a very solid feeling in your hand. Handy tool to have on hand. It scales for three materials: Steel, Aluminum and Single-ply. It is a snap to use. Just slide it into slots until it no longer slides in, and read the thickness. [High Quality Materials] The Panel & Membrane Gauge Shingle is made of high quality thick stainless steel. The production process has been upgraded. Compared with other similar measuring tool for roof shingle, we have 4 major advantages: 1. Higher Precision. 2. More Wear-. 3. More . 4. Higher Hardness. It give you a better experience. Colour:silver Material:Stainless steel 304 Package Contents: 1 * Measuring Thickness and Metal 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.