Build Solo or Together. Unique, connect-anywhere Brackitz attach to traditional planks at any angle, enabling builders of all ages to construct everything from small-scale builds to larger-than-life gravity-defying, 3-D structures - with their friends or alone - no limits. With plastic planks and rotating pieces, the Inventor 100 Piece Set is a great for larger builds and enables anyone to create builds with moving parts. Versatile, durable, and portable, award-winning Brackitz brings real-life art, math, science, architecture, and engineering principles into play. Includes 100 colorful blocks, connecting hubs and instructions. Over 25 FREE standards aligned online lessons.