This giant tub of vibrant, spinning gears will set imaginations in motion. Kids can explore simple mechanics and build patience and manual dexterity using easy snap-together pieces. 121-piece Lights & Action Gears Set comes with colorful, durable plastic gears, cranks, pillars and connectors, a power motor, flashing lights, glow-in-the-dark stickers and more. Motor requires 3 AA batteries (not included). Combine sets for maximum building possibilities!