Practical tool ruler, measuring and drawing both, the ruler on the centimeter, inch two scale units, to meet the needs of different scenarios of measurement, at any time to mark the focus of the drawing graphics, study and work are very practical. Comes with a card pocket, where you can put business cards, bookmarks, and some notes to record important matters. A book of 9 uses, whether for study or office is very convenient, you can record and mark what you want to do at any time. Practical sticky notes, the key things are not missed.