Contour Gauge can duplicate any shape instantly. This profile gauge creates an instant template for curved and odd shaped profiles simply and easily. Never transfer profiles to paper or cardboard again. The contour gauge makes measuring and cutting easy. It is mainly designed to copy precisely winding pipes, circular frames, ducts, and many objects, Ideal for fitting tiles, laminate, carpet, checking dimensions, molding, etc. Made of high-quality ABS PVC Plastic, tough, durable, high strength, durable, and will not scratch the original finish of the shape being duplicated or rust. Designed for a precise contour and long-lasting use. High definition cutting line, clear enough, easy and convenient to read. Note: With the magnet(not included), you can stick to iron products, and facilitates measurement and cutting. Please allow an error of 1-3mm due to the difference of manual measurement. Length: 25cm / 10inch. Pack of 1 piece [Colour: Red, Blue, Green]