Highlight description: ?Adjustable Lock??Our ruler has an adjustable lock, which can adjust the tightness according to your needs. It can be locked and fixed after each adjustment to ensure accuracy. Specification: Product Name: Contour Gauge Color: As Shown Material: Metal, ABS Size: 23X3.4cm/9.1X1.3inch Product Features: The metal ruler body of the contour scribe is strong and durable. One end is a pulley and one end is a pointed tip. Both ends can be shaped. The product can be drawn by plugging in a pen. The operation is simple and convenient to use. (Note: When drawing a line, the contour fetcher must always move at the same angle.) Arbitrary selection: suitable for measuring and imitating various shapes, such as cylinders, ceramics, models and other irregular objects. Wide Range of Applications: It can be used to measure and mark the shapes of floors, carpets, plumbing, etc. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please allow slight dimension difference due to different manual measurements. Thank you for your understanding.Package including: 1X Contour Gauge 2X Pencil Both the pulley end and the pointer end can be used The drawing on the pulley end is smoother, and the picture on the pointer end is more accurate and more accessible This measuring tool is made of high-quality metal and ABS. It is durable and easy to carry and store. Just put it in your toolbox and take it with you Fix the pencil in the middle, push while drawing, easy to draw the line without making mistakes, can be adjusted with one hand This contour ruler is especially suitable for drawing the contours of irregular and complex