Silicone expanding pencil case - monster.

* made of high-quality silicone, soft to the touch
* closed with a zipper
* water-resistant - very easy to clean
* with an adjustable height from 12,7 to 19,7 cm
* just pull - and the pencil case will expand as needed
* thanks to the flexible material and zipper closure, everything from pens, pencils to small treasures can comfortably fit in
* a stylish addition to a school backpack