Item Name: 25.4 Profile Gauge Size: 28.3 x 10, ruler size: 25. Red color. Unit of measurement: . Great for Copying Irregular Shapes and Contours - Great for oddly shaped angles to cut patterns properly. Lightweight and Durable Contour Gauge: Made of strong and durable ABS plastic, lightweight, sturdy and well constructed. No bad smell, acid resistant and never rust. Perfect counter for duplicator of traditional wooden shapes. Accuracy and size profile gauge: The profile gauge can be marked with 0.1 precision, both sides have a size mark, and both sides are available. Professional precise profile duplicator for tiling, woodworking, edge decorating. Professional and easy to use: In 1 minute you can get a precise outline for irregular items. Just press the teeth of the contour gauge to match the contour and then follow the shape you need. Quickly get a duplicator for irregular items, save time for you. Wide Application: This contour gauge is suitable for measuring many irregular items, winding pipes, automotive metal sheets, circular frames, pipes, tiles, laminate , wood planks, ducts, floors, carpets, moldings, carpentry, tiling, etc. Please be careful when using to avoid injury. Warning: Not suitable for children under 11 years old. To be used under the supervision of an adult