Contour Gauge with Locking Design After adjusting the fixed lock and pressing the shape, you can use the locking mechanism. The contour teeth do a good job of copying shapes because they did not loosen too much in the holding mechanism. It will maintain its shape when you try to draw the contour needed for cutting. Both ends can be used It was designed with a pulley end and a pointer end, and both ends can be used. Smoother drawing with the pulley end is precise and easy drawing with the pointer end. The pencil clamp can be moved up and down, so it is convenient to change the end of the shape. Adjustable tightness and locking function You can adjust the tightness according to your needs. It can be locked and fixed after each adjustment to ensure precise accuracy. Versatile Contour Gauge Copy Each profile gauge can be used on floor tiles, ceiling tiles, carpets, wood boards, woodworking projects, construction, circular frames, pipes, laminate, ducts, moldings, etc. You can also use it for home decoration or renovation, DIY project, door frames and more. Perfect Gift The contour duplicator is an ideal gift for a carpenter, joiner or DIY enthusiast. It works on multiple projects, such as laying tiles, installing flooring, home decoration, piping, laminating, woodworking and carpeting.