[Contour Gauge]---Precise shape measurement, can reproduce different shapes, Contour Gauge is very suitable for laying tiles, ceramics and tool molds, laminates and carpet cutting. [Adjustable and Lockable Function] --- The intensity of Contour Gauge can be adjusted according to your needs. Contour Gauge is particularly suitable for drawing the contours of irregular and complex objects. It can be locked and fixed after each adjustment to ensure the measurement accuracy. [Wear Around] --- Contour gauge is only 3.5*2.7*23.3cm and weighs about 0.182 kg. It is easy to carry and store, and it is more convenient to use. [Available At Both Ends] --- Contour gauge has pointers and pulleys at both ends, and both ends can be measured. The scroll wheel makes the drawing smoother, and the drawing at the end of the pointer is precise and easy. [High Quality Material] --- The contour gauge duplicator is made of high quality metal. quality + ABS, which is durable and easy to carry and store. It is your best helper when measuring. Product Adjustable and Lockable Function The intensity of Contour Gauge can be adjusted according to your needs . Contour Gauge is particularly suitable for drawing the contours of irregular and complex objects. Easy to Carry Contour Gauge is easy to carry and store, and provides more convenience for your application. Both Ends Can Be Used Both ends of the Contour Gauge can be used for measurement. The scroll wheel makes drawing smoother, and drawing at the end of the pointer is precise and easy. Product Specifications Material: Metal + ABS Size: about 3.5*2.7*23.3cm Weight: about 0.182kg Measurement range: 233mm Instruct: 1. Turn the center nut to adjust the clamps tightness. 2. Insert the marker into the clip. 3. Turn the nut to secure the marker. 4. Measure with pulley/pointer.