3 pieces of marking toolsPackage includes: 25cm blue outline marker + 15cm red outline marker + 12cm green outline marker. Simply copy any shape or copy the outline, just for carpentry or tile/linoleum placement, shapes you want to recreate moldings or trim on door panels and pipes. DURABLE MATERIALMade of strong and durable ABS plastic, lightweight, strong and well constructed. Works well when cataloging traditional wood molding shapes. Easy to use: just press the pin teeth on the shapes and mark. If the pin is too loose, you can simply use pliers to press the end of the brass plug to regain some slack. Convenient and save your time and effort. Virtual Shape CopyDesigned for rolling tubes, circular frames, channels and various objects. Contouring cutters can be used for woodworking, body shaping and any contouring process, for precision joining of corners, planks or carpets, tiles, converted cars etc. Wide ApplicationsThe profile gauge is suitable for measuring many irregular items, winding pipes, sheets, circular frames, pipes, tiles, laminates, wood floors, pipes, paints, carpets, molds, etc. Please be careful when using it to avoid injury. Utilities: The pen motion profile is very flexible and easy to measure and cut, Practical tools for manipulating all types of modeling to eliminate guesswork. General application of contour theory: Rolling tubes, frames rounds, dashboards, laminates, carpets, dimensional control, etc. for car body measuring work, carpentry, all types of models. Easy to use in 3 steps 1. Duplicate the shape with this profiler 2. Apply the print to the cutting mat 3. Cut by layout Comment: Manual measurement, size allow slight deviation.