Structures is an architectural building set that requires no glue or connectors! The sky is the limit! Simply stack the precision pine planks to create ornate buildings, monuments and geometric forms. It is the ideal activity to help kids gain an understanding of balance and proportion, as well as an interest in architecture, building and design. Recommended Ages: 8 Years And Up Use: Indoor Measurements: 13 Width/Inches, 5.2 Height/Inches, 13.2 Length/Inches Base Material: 95% Cardboard, 5% Other 5% Or Less Care: Wipe Clean Country of Origin: Imported