Marble Run Building Set with Motorized Elevator

national geographic marble run with a motorized elevator and 20 marbles, equal parts fidgety desk toy and tiny engineering lab.

snap tracks, chutes, and spirals together, then power the motorized elevator and watch 20 marbles climb, race, and loop again. it’s a rebuildable, bite-size Rube Goldberg that rewards tinkering and rearranging, with a storage bag to keep the pieces corralled. weirdly mesmerizing, oddly educational, and perfectly unnecessary in the best way.