Too many times we found ourselves in a situation where putting a 30 cm ruler into the pencil case or even a bag is so difficult! Well, this will never happen when you got a Kokuyo alumite folable metal ruler. Such a sleek design which ensures both convenience and portability. The ruler can fold in half making it as short as appx. 15cm. The open-close mechanism for folding feels extremely smoothly. The product comes with two different colours i.e. black and silver. Also, the aluminium material is more durable than plastic ones.