Details: This kit is a fun and informative way to educate the young ones. Our educational Human Biology Kit lets them learn about out teeth. Each kit contains detailed do-it-yourself models and an informative booklet to explain key facts about the functional structure of our teeth. For ages 7 and up. Choking hazards- small parts. Not recommended for children under 3 years of age. The box measures 4.5 x 5 in.