Cubic Fun C713H Tien An Men 3D Puzzle-Great Architecture (Easy to assemble) A fun and challenging 3D puzzle of Tiananmen Square in Beijing Constructed using CubicFun's unique slotting system Difficulty Level: 4 stars Number of Pieces: 50 Construction time: 100 to 120 minutes Length when completed: 27.5cm Shipping Weight: 0.49 pounds