This is an item of stationery (paper or writing goods), or other small merchandise such as good-luck charms, mascot straps, et cetera.
Ikaros from "Sora no Otoshimono" kneels on the front of this knapsack clutching her favorite thing: a big, bouncy watermelon! You could probably fit a watermelon inside this handy drawstring bag--it's a big 37cm by 45.5cm, and is made of 100-percent polyester for strength, with long drawstrings for easy carrying. It's cute and it's handy, too--what could be better?