Specifications Material: Plastic Color: Gray Size: 127x100mm(5 Inch), 60x100mm(10 Inch), 510x100mm(20 Inch) Package Included: 1Pc Contour Gauge Features 1. 10-50cm optional Profile Contour Gauge: Irregular Profile Contour Gauge is designed for winding pipes, circular frames, ducts and many objects. Simply press the tooth against the object to match the contour and then track the shape you need. 2. For Irregular items: Gauge can be used to measure the shape of irregular items. 3. Durable Material: Made of high quality ABS plastic, Tough, durable,high strength, durable, anti-rust. 4. Easy to use: Simply press the contour gauge onto a shape. Copy the profile and cut to shape. Ideal for fitting tiles, laminate, carpet, checking dimensions, molding, etc. 5. High Accuracy: High definition mark line, clear enough, easy and convenient to read. Suit for woodworking, auto metal sheet, stainless steel or any job of contour duplication. Notes 1. Please allow slight measuring deviation due to manual measurement. 2. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 3.Please leaving a message before you give the bad feedback, if the products have some problems.Thanks for your understandings.