Ravensburger GraviTrax POWER Starter Set XXL for kids aged 8+ & Ravensburger GraviTrax POWER Expansion Interaction. Electronic accessories for spectacular marble runs, for kids aged 8+.

["Product 1: GraviTrax is the flexible expandable and interactive marble run system for kids aged 8 and up. With GraviTrax, entire marble run worlds can be created. All GraviTrax products from the three lines GraviTrax, GraviTrax PRO, and GraviTrax POWER can be combined together.","Product 1: In this large POWER Starter Set, all electronic GraviTrax POWER elements are included: Starter, Finish including target arena, Trigger, Switch, Elevator, Lever, and the Controller. More action and interactive fun with GraviTrax.","Product 1: The included building plans make getting started easier, then creativity knows no bounds: With various expansions, kids can enlarge their marble runs and redesign them over and over. Endless fun is guaranteed.","Product 1: The GraviTrax POWER Starter Set XXL requires a total of 11 AAA batteries, which are not included in the packaging. Rechargeable batteries can be used.","Product 2: Gravitrax POWER Interaction is the electronic expansion for the interactive Ravensburger for kids aged 8 and up: With GraviTrax, kids, teenagers, and adults build not only simple to complex marble runs. They create imaginative and action-packed marble run worlds.","Product 2: The electronic elements of Gravitrax POWER communicate via radio signals. This creates invisible connections between the elements. With the Controller, you can actively intervene in the course of the marble and the Elevator transports the marble automatically to higher levels of the track during its run.","Product 2: The GraviTrax POWER expansion Interaction can be combined with all GraviTrax starter sets, expansions, and action stones. GraviTrax, GraviTrax PRO, or GraviTrax POWER: The Ravensburger marble run system offers endless combination possibilities and creativity.","Product 2: GraviTrax, GraviTrax PRO, GraviTrax POWER are three pillars of the Ravensburger marble run system. The GraviTrax line is the entry point and with countless expansions the basis of every marble run. PRO adds height and complexity to the track, while POWER delivers electronic components - for interaction, variable track layouts, and long running times"]