It's hard to review something this ridiculously cute. Because you don't want to use it. So guess what? I DID NOT. That's right. So it's not really a review. It's more of an analysis of sorts... I have a totally valid reason for this. And that's because I have reviewed this very adorable and very similar eraser: Mamegoma Adventure Eraser + Mini Eraser.
CoolPencilCase. Get yourself one of each.