Treasure box pencil case

http://www.youtube.com/watch?v=qdRit8Vr8FM&feature=youtu.be
(Kinda starts suddenly but it starts with the little button being pressed on the top left of the part)

This pencil case has secret departments. The key pencil topper opens up the ruler compartment and the ruler opens up a separate compartment to store erasers, lead, paper clips, etc. There is a spring (like the one that holds the side compartment in) that pushes the top of the pencil case up as the button is pressed.

Everything