Techno Gears Marble Mania sets are multi-piece construction sets that allow aspiring engineers to create their own working masterpieces. This set includes more than 200 colorful construction pieces kids can use to create a fascinating marble run, measuring more than 2 ft. high! Once complete, watch gears rotate and marbles rise through the power corkscrew lifter, and finally exit onto multiple illuminated channels in different directions. Includes channels, translucent 3D connectors and structures, a powerlifter, LED light modules, chrome stickers and more - everything necessary to build hundreds of marble run designs. Requires 2 AA batteries, sold separately. Aligns with STEM standards. For ages 6 and up.