Art Supplies Design Coss Stationery Supply by gyeong-gyu jeon ‘Coss’ will decrease worry of users regarding tools even when it comes to an unexpected works. ‘Coss’ will provide four stationary functions such as a pen, a sharp pencil, a knife and a ruler, at the same time with convenience of carrying various tools in one product. It means that you can write and draw lines with a ruler and cut with one ‘Coos’. Carrying many stationary supplies is inconvenient and there is a chance to lose one of them. But ‘Coss’ can gather all of supplies automatically, so it cannot be easy to lose. Also, with squared shped tool, it's easy to grip.