HABA Zippy Cars - Sturdy Cardboard 10 Piece Stacking & Nesting Cubes With this versatile set, your little one will become acquainted with the numbers 1 to 10, while delighting in arranging and nesting each cube into the other, over and over again! Build up a sky-scraping tower, then knock it to the ground. Parents will love the learning value this simple set provides, as well as the way it can be picked up and put away. The outer sides show many caringly designed pictures: zippy cars dashing through the streets along with corresponding drivers and numbers. Children will enjoy counting the objects on one side. A great way to practice counting numbers 1 to 10. Contents: 10 cubes of different sizes to stack and nest. Made of Sturdy Cardboard. Length of largest Cube 5.5". Recommended for ages 1 Year and Up.