The standard refrigerator box as a play toy has given way to more intricate and complex designs. To be sure, a giant box is still a blast for kids — but if you’re looking for something with a little design flair, this cardboard Calacastle is a great choice.

Not only is the Calacastle fully recyclable, but its blank 41″ x 41″ x 49″ walls can be decorated any way children see fit — and may also be configured in a variety of ways. Plus, it’s available right now for only $70 — which sure beats having to splurge on a fridge for a giant box! To see more details, jump here.

via ohdeedoh