Challenge construction creativity while encouraging gross motor coordination through movement. Motorized set plays music, dances and comes with 110 pieces, including a flashing fan light, disco ball, floppy hair, oversized glasses, action mouth, pointing hands, stickers and more. Color-coding makes it easy for students to follow building instructions for 3 different models, or build their own. Compatible with all other Gears! Gears! Gears!!r sets. Measures approximately 16"L x 10 1/2"W x 12"H when assembled. Requires 3 AA and 3 AAA batteries, not included.