It is the best friend of the artist, engineer, designer, architect, student and general public. There are two very clear ways to look at the. It doubles as a drawing tool and also works as an EDC tool. It's not just a stationery tool, it's also a real tool. It contains both a stylus holder, a round / compass, a key, a scale, a bottle opener and a drawing guide. It includes two utility modules, a straight ruler with perforations linear and a second curved profile abstract ruler, drawing guides, 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 introduce the compass base into the mix. There's a lot that can be done with that. It allows you to create perfect lines, curves, circles, measure designs, create mandala patterns and even place pens/pencils inside while resting. Note: The data is manual measurement, please allow 1-38cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.