- Six cubes, each uniquely hinged.
- Open, close, rotate, flip, stack - endless building, perpetual design
- Also includes 50 challenge cards that encourage young builders to visualize, conceptualize and realize a world of architecture
- Each card includes educational facts, terms, landmarks, and more
- A perfect introduction to architecture, structure and design
- Ages 5+
- Size (Case): 6-3/4" square (17 cm)