HABA Peekaboo Zoo - Nesting & Stacking Matching Game with 6 Sturdy Cardboard Houses & 6 Wood Animals Oh no! The animals at Peekaboo Zoo are looking for their houses. Can you help save them with this stackable matching game? Match animals to their homes by size, hidden image, or color and pattern. Stack boxes to make the "tree" grow up the back. Nest the boxes when you're done. Includes 6 animals (giraffe, elephant, zebra, monkey, lion, and hippo) and 6 nesting boxes. Wooden animals and sturdy cardboard nesting boxes. This toy encourages cognitive development and imagination and is great for free-play. Suitable for children ages 18 months and up. Chosen as one of the 24 best toys for babies and Toddlers by Parents Magazine 2016!