Contour Gauge Lockable Contour Copier25cmInstrument Tool Profile Gauge for Measuring Plastic Tile Laminate Wood Marking Tool Practical: The Kartokner contour gauge is a good helper for carpenters. The contour gauge can duplicate the shape instantly. No need to transfer profiles to paper or cardboard, saving you a lotof free time. Simply press the contour gauge on a contour gauge to eliminate guessing the dimensions of irregular shapes. Long Service Life: The contour gauge is made of good quality ABS plastic, high strength, anti-rust and durable; the plastic does not rust conforms to the shape and maintains the design. Dual Scale: Contour duplicator with inch and centimeter graduations on the gauges strong and durable plastic body. This jig also has ruler markings on the body of the tool in 2.5 cm and 1 centimeter increments,meets all your measuring needs.