The Melissa & Doug Unit Blocks Cart is a durable wooden cart on red wheels. It can be pulled around by a cord attached to it. It is slightly larger than 12 inches by 12 inches, and it is filled with 36 blocks of different shapes, sizes, and colors. All of these blocks fit together like a puzzle, so when a child takes them out of the cart they must learn how to put them back in so they all fit in the box the way they did before they were taken out. Children also learn how to build things using these blocks. They familiarize children with various shapes, and they introduce young ones to different colors. Striking red, blue, green, yellow, and tan-colored wooden blocks completely fill up this cart. The Melissa & Doug Unit Blocks Cart is recommended for children 2 years old and older.