Package Inclued: 1set pocket-sized drawing tool with box\u00A3\u00ACDesigned for portability, It is intended to be a portable stationery. Not only does it work great as a straight and curved metallic ruler, it is also a compass and a protractor. With it in hand, you will be well-equipped to draw perfect circles and patterns effortlessly. It is a highly portable multi-functional stationery item with many more handy capabilities than a traditional compass. Easy to use,Just placse this tool on the paper, hold your finger in the center and inert the pen into the hole. It doesnt poke holes through paper as it has no sharp point, and yet is still stable enough to not move around thanks to the specially designed rolling base. It is an innovative pocket-sized drawing tool tailor-made for designers, artists, architects, journal enthusiasts, mandalas lovers, illustrators, tattoo artists, students and creative professionals. [Laser scale]: There are two very clear observation methods. It can be used as a drawing tool or as an EDC tool. [Gift] It is the best friend of artists, engineers, designers, architects, students and ordinary human beings. [Use]: Can do many things. It allows you to make perfect lines, arcs, circles, measure drawings, make mandala patterns, and even let you put a pen\/pencil in it when you are resting. Material: Aluminum + steel Color: black Size: 17mm Package Included:1 x Magnet Drawing Ruler