It comes with four big, sturdy wooden blocks, and kids arrange the blocks to match each challenge. Some challenges may look very similar, but the solution can be completely different depending on things like how far the ears of the rabbit stick out. With Bunny Peek-a-Boo, children will have fun discovering the world of 3D spatial perception, an important skill in reading and mathematical reasoning. Children can solve the 60 challenges or just play with the blocks as wooden toys, exploring concepts like above/below, inside/outside, visible/hidden, etc. Bunny Peek-a-Boo was named to the Parents Magazine 2013 top picks from Toy Fair.