EXTREME building for EXTREME kids! This massive maze packs a punch for the senses! There are more than 200+ colorful construction pieces that will be used to create this fascinating marble run, measuring more than 2′ high! Once complete, watch gears rotate,marbles rise through the power corkscrew lifter& exit onto multiple illuminated channels in different directions. Includes channels, translucent 3D connectors & structures, a powerlifter, LED light modules, chrome stickers& more everything necessary to build, illuminate& power-up hundreds of marble run designs. Techno Gears Marble Mania sets align with STEM (Science, Technology, Engineering, and Math) standards& are interchangeable. Collect them all! Recommended for ages 6+ years. Requires2 “AA” batteries (not included)