-MOTORIZED LIFT FOR ENDLESS RUNS – This marble run features a motorized lift that can carry your marbles up 16 and drop them onto the track Create a perpetual motion machine that continuously takes your marbles back to the top to launch again

-95-PIECE KIT FOR MASSIVE MAZES – With 61 construction pieces, 20 marbles, and the 14-piece spiral lift, you get everything you need to create endless configurations of marble runs A storage bag is also included to safely store your kit.

-COMPATIBLE WITH NATIONAL GEOGRAPHIC MARBLE RUNS – Expand any National Geographic Glow-in-the-Dark Marble Run with this kit! All pieces, including the spiral lift, work seamlessly with existing sets (non-magnetic), so you can create even bigger runs!

-LEARN WITH NATIONAL GEOGRAPHIC – With National Geographic STEM toys, learning is always part of the fun The included Learning Guide contains fascinating facts about physics, motion, and more It also contains tips for building amazing marble runs

-HIGH-QUALITY EDUCATIONAL TOYS – We’re proud to make the highest quality hands-on science toys, and all our products are backed by exceptional service. If your experience is less than stellar, let us know and we’ll make things right