•56% MORE pieces than regular Crazy Forts •100s of Design Possibilities •Recognized by Purdue University for promoting engineering thinking & design. Crazy Forts are powered by a child's imagination. Create a multitude of possible play structures! Each Mega kit presently contains 42 balls and 78 sticks, 59 regular and 19 diagonals and includes bonus Fort Light! Crazy Forts are proud to have been recognized by Purdue University in their Engineering Gift Guide. Dimensions (Overall): 10 Inches (H) x 17 Inches (W) x 5.5 Inches (D) Material: Plastic (Frame) Suggested Age: 5 Years and Up Assembly Details: No Assembly Required CPSC Choking Hazard Warnings: Choking_hazard_small_parts Material: Plastic Battery: 2 CR2 Alkaline, Optional, Not Included