It is the best friend of artists, engineers, designers, architects, students and the public. There are two very clear views. It doubles as a drawing tool and can also be used as an EDC tool. It's not just a stationery tool, it's a real tool. It contains a pen holder, compass/compass, key, scale, bottle opener and drawing instructions. It contains two useful modules, a ruler with linear perforations and a second abstract ruler with curved outlines, one drawing instructions, a set of keys and a bottle opener. These modules can be used independently, such as: a scale or a French curve ruler, but things get more interesting when you throw a compass base into the mix. There are many things you can do with it. It allows you to create perfect lines, curves, circles, measure designs, create mandala patterns and even put pens in it while you rest.