Warning: Choking Hazard - Small Parts. Not for children under 3 years.3 years & up. Develop creative thinking and improve fine motor skills with this unique building set. Make shapes, compare sizes, and identify colors and numbers. Our Junior GeoStix have multiple points of connection along each piece for unlimited possibilities for shape combinations and greater satisfaction for kids! Includes 140 flexible sticks in eight lengths and 20 double-sided activity cards. Children can either build the design on the activity cards or create their own designs. Either way, they can use those designs further in imaginative role play.