This innovative 222 piece construction set is a fantastic STEM learning toy that combines fun and learning. The set includes a 2-in-1 electric screwdriver that can work as both an electric drill and a motor, so children can develop their skills. The kit includes colorful gears that can be assembled in endless creative combinations on the included hole base. The gears are connected by a chain, which makes them all rotate together creating fascinating mechanical movements. This game promotes logical thinking, creativity and understanding of the basic principles of mechanical engineering. Perfect for ages 3 and up. The set allows you to create different gear configurations and provides hours of learning fun. The robust base and coloured gears are designed for durable and safe use. An ideal gift for developing fine motor skills and understanding cause-effect relationships in children.