Widening Detection Range: Compared with the old model, the new model is widened on the basis of lengthening, no need to worry about measuring objects too large to measure,The new version has a measurement depth of 6cm which is twice that of the old version. The old version measures only 3cm. Contour Gauge Duplicator (IMPROVED 2019 VERSION) feature: EASY TO USE- Press the teeth against the object to match the contour and then trace the shape you need. Convenient and save your time and energy. MATERIAL:Constructed of high quality ABS plastic for strength and durable use High precision calibration for accurate measurement,No rust plastic conforms to shape and holds pattern ,Size: 10 inch/25 cm multi-functional contour profile gauge, available both in inch and centimeter scale measurements. Size mark on both sides, and both sides are available. WIDE APPLICATION: This contour gauge fits for measuring many irregular items, winding pipes, auto metal sheet, circular frames, pipes, tile, laminate, wood planking, ducts, flooring, carpet, molding, etc. Please be careful when using to prevent injury. 100% money back guarantee. If you are unsatisfied in any way with this product, we will refund your money, no questions asked.