Your first chemistry set with over 35 activities! Those candle making water squirting freezing thawing glop and mud pie experiments every child should do to explore the matter of matter.MANUFACTURER’S SAFETY CAUTIONS AND WARNINGS:WARNING! CHOKING HAZARD: Small parts. Not for children under 3 yrs. Children under 8 yrs. can choke or suffocate on uninflated or broken balloons. Adult supervision required. Keep uninflated balloons from children. Discard broken balloons at once. Small parts. Toy contains small marbles. Not for children under 3 yrs.