http://www.hezehuaxing.com/box/storage-box/ The pencil case is a box used by contemporary students to store stationery, which can hold pens, pencils, rulers, erasers and other stationery. Texture is a lot, generally wood, iron, plastic products, different shapes, mostly cuboid shape. The pencil case itself has not apply for a patent, and it is evolved from the original tool storage means (such as rice cylinder, toolbox, portfolio), etc. It is a natural evolution tool of human behavior habits. If you must trace back to the source, it is impossible, just like you want to explore who invented the first bowl.鈥?/p>