Open-ended play at its best! This stacking block set includes 12 solid wooden pieces for your toddler to build an infinite variety of their own customized treehouses. There is no wrong way to stack them and your toddler will delight in their ability to create while discovering cause and effect. For over 30 years, Manhattan Toy has been making award-winning, high-quality, educational toys for your baby, toddler or kid. From preschool activity centers and learning toys, to classic wooden toys for toddlers, our goal is to provide the safest and best toys available. All of our products, from the newest concepts to our time-tested classics, are innovatively designed to inspire imaginative play and delight our customers.