This building set includes 135 building pieces and features a spinning Ferris wheel, a musical light-show cone, fast tracks, extreme launchers and more that easily connect Color-coded blocks and easy-to-follow guide help you construct three different builds from beginner to advanced or create your own; includes 10 marbles Create an extreme playset by combining with other Marble Rush sets (sold separately); find more build ideas by visiting the VTech Kids website Accredited STEAM (Science, Technology, Engineering, Art and Math) Toy by the Toy Association Intended for ages 4+ years; requires 2 AA and 3 AAA batteries; batteries included for demo purposes only; new batteries recommended for regular use Roll through thrilling stunts and exciting challenges with the Marble Rush Ultimate Set. This 145-piece color-coded building set includes a spinning Ferris wheel, a swirling cone that plays a musical light show, thrilling ramps, fast tracks, extreme launchers and bases that all easily connect together. The easy-to-follow leveled guide includes three different builds from beginner to advanced, or create your own courses. When construction is complete, drop the 10 marbles into action and watch them race down ramps and swirl through funnels to the basket or ramp challenges. Compete with family and friends using the exciting launchers and non-stop Ferris wheel to keep the marbles in motion and bring them back to the beginning. Combine with other Marble Rush sets (sold separately) to create an extreme playset. Find more build ideas by visiting the VTech Kids website. Recipient of the STEAM (Science, Technology, Engineering, Art and Math) Accreditation Stamp of Approval by the Toy Association. Intended for ages 4+ years. Requires 2 AA and 3 AAA batteries. Batteries included for demo purposes only. New batteries recommended for regular use.