Jump into a whirlwind of excitement with the CDX Blocks Motorized Power Supply Set, designed to bring your models to life effortlessly. Ideal for those who love to see their roller coasters or fun fair rides in motion without manual intervention. This set includes a motor and a battery box that seamlessly integrates with any CDX model, allowing for hands-free operation. Just insert 2 AA batteries (not included), connect it, and watch your creations move! Whether it's for display, simultaneous running of multiple models, or educational purposes like learning about gears and motors, this set is perfect for all your needs. The kit also includes two different length connecting shafts to ensure compatibility with any model.