This BIG piece set contains 200 BIG pieces. Choose between Basic, Neon, and Pastel colors. Plus-Plus is a new kind of construction toy. Its one simple shape produces endless possibilities - assemble them flat to create a 2-D mosaic or work in 3-D to make more complicated structures. Even curves are possible thanks to the unique design of this deceptively simple shape! This BIG size is especially well-suited for preschools and other early learning environments.