Its a new twist on a favorite toy! Why stack with just pegs when you can use "Mighty Monkeys". these colorful monkeys are large (approx. 3 in. high and wide), so they are easy to grasp. And each leg acts as a peg, so they are stable. Kids will enjoy coming up with Mighty Monkey formations seeing how high their stack can go! comes with a 36 hold crepe rubber pegboard and activity guide to start you off. Interacts with Tall Stacking Pegs.