• Includes 1000 building pieces in 6 sizes,perfect for building and exploring creative ideas
• Comes in 4 colors—black, dark gray, light gray, and white, perfect for endless building and exploration
• Includes more 2x4 and 2x3 bricks for building larger, stable structures
• Promotes STEM skills through building models that feature engineering, math, and spatial thinking
• Helps children discover and develop their own ideas through imaginative building activities
• Comes with a convenient storage box, great for fun at home or outdoors
• Compatible with major brick brands, providing more building opportunities