The set contains 5 wooden parts connected by a magnet. The wheels are movable; so, your baby will be able to imitate the movement of a caterpillar. Introduces your child to animal world, develops motor coordination, imagination, and fine motor skills. All Cubika toys are made of eco-friendly wood from the Carpathians and painted with water-based paint, which has no odor and is absolutely safe for children. 3+ years