This set includes all the tools and components needed to help develop engineering skill and enhance creativity while having fun.Science - Technology - Engineering – MathematicsStanley Jr. Bulldozer Mechanic Kit286 PiecesTools IncludedActual box size (approximately) 16.5 inches x 12.875 inches x 2 inches. (Shipping box is larger)Skill level: for children 8 and above.Choking Hazard: - Small Parts, not for children under 3 Years