ADJUSTABLE AND LOCKABLE The tightness can be adjusted as needed. It is particularly useful for drawing irregular and complex objects. It can be locked and fixed after each adjustment to ensure accuracy. AVAILABLE IN BOTH ENDSOur contour gauge comes with a pulley end and a pointer end. The pulley end is smoother, and the pointer end is more precise and easier. The pen holder can be moved up and down to change the end of the style easily. DURABLE AND CONVENIENTPrecise contour gauge is made of high quality metal, sturdy and durable. Small size, easy to carry and store. You can put it in your toolbox and take it anywhere you want. ACCURATE SHAPE COPYING A simple and effective way to copy any shape instantly. Accurately copy the snapshot template for curved and irregularly shaped objects. EASY TO USEThe operation of the contour gauge locking mechanism is very simple, it can even be operated from a single hand. Fix the pencil in the middle, then press down while drawing the line. Note: The data is all manual measurement, please allow 1 - 3cm error, due to the difference of light and d display, there will be a certain color difference, depending on the physical object received.