Kokuyo C2 R tray type pencil case can transform itself from a conventional pencil case into a small convenient tray. Just unzip it thoroughly and flat it on the desk. Magically, it would then turn itself in to a tray. The widely opened tray makes you easily pick the stationery you need. Unlike the traditional C2 tray pencil case which is made of polyester material, the C2-R is made of silicone material making it more durable and easy to clean. The case can comfortably accommodate approx. 20 pens.