Features . Wacky for a playful fascinating learning experience. Hands on design with spinning gears develops early STEM skills. 130 piece set includes gears springs teeth lights and more. Battery operated construction requires 3 AA batteries sold separately . For children ages 5 and above Package Contents . Colorful Gears. Springs. Chomping Teeth. Flashing Lights. Whiskers. Glowing Eyeballs Specifications . Number of Pieces 130. Recommended Age 5 9 Year