These Kittens Have A Cute Little Toy – Or Is It A Playground?

These kittens were given a cute little toy / playground to play in. Watch them frolic.

It’s incredibly adorable how they go in and out of the holes. It’s like they already know what to do with it.

I just can’t decide what exactly to call it. It can’t be a playground, cuz the kittens can shove it around. You can’t call it a toy either, it’s too big to be one for these kitties. What would you call it?