Encourage early building skills with the Techno Jumbo Toolbox Quercetti set from KidSource. Designed for ages 3 years and older, this 90-piece set includes instructions for kids to build various models and come packed in their own handy toolbox---makes it easy to travel with and store. A wonderful way to instill early S.T.E.A.M. skills with young children. Encourages fine motor skills, reasoning, cause-and-effect and more.