Projects aren’t always straight lines and right angles that’s why Powerbuilt created the 2-piece contour gauge. The Contour Gauge is the practical measuring tool for all types of jobs including tile flooring, ceramic installations, woodworking, circular frames and many more. It allows you to easily and precisely replicate curves as well as oddly shaped areas around the home and shop. Saves your valuable time by never having to transfer profiles to paper and eliminates guessing on dimensions of unknown shapes. This set comes with both a 5 inch and 10-inch gauge with SAE and metric scales. Constructed of tough durable plastic to prevent bending or rust for a long tool life.