Locking Mechanism: The next generation contour duplicating gauge features a locking piece to ensure the contoured area remains until traced. Multi-application SceneShape contour duplicator is designed for winding pipes, circular frames, ducts and many objects, ideal for fitting tile, laminate, carpet, dimension check, molding , etc. Useful tool for bodywork, carpentry and all Improved contour gauge10" contour duplicating gauge with finer pins will measure profiles in an accurate way . Easy to use: the contour duplicator measures 25 cm. Simply press the teeth against the object to match the contour and follow the shape you need. This gauge increases your productivity and saves you valuable time to mark the precise cut. High quality and durable: The contour gauge is made of high quality ABS plastic, high strength, rustproof and durable , no rust plastic conforms to shape and maintains pattern.