This is an accessory and the GraviTrax Starter-Set sold separately. The Lifter Expansion Set takes your marble run experience to a whole new level with over 25 additional elements. Once the marble reaches the bottom, raise it up to 3 levels higher using the Lifter accessory: a button-operated elevator. Experiment with additional tracks, height tiles, and one transparent level. Combine with the GraviTrax Starter Set and test your skills to see how long you can keep the marbles rolling. Includes 1x Lift, 7x Gravity Spheres, 1x Clear Level, 8x Large Vertical Tiles, 4x Small Vertical Tiles, 1x Long Rail, 2x Medium Rails, 3x Short Rails