4 years & up. These colorful plastic stacking sticks can create endless building experiences. The unique snap and lock feature will hold pieces in place to make stacking and transporting easy. Encourage children to use their imagination to build unique structures or replicate buildings they see locally. Each piece is color-coded making it easy to build along with the suggested designs. This set promotes fine motor skills. Includes various lengths of sticks, building base, and 2 sizes of wheels. The set has 211 pieces.