Plus-Plus is a new kind of construction toy. Its one simple shape contains endless possibilities - assemble them flat to create a 2-D mosaic or work in 3-D to make more intricate builds. Even curves are possible thanks to the unique design of this deceptively simple shape. Precision crafted in Denmark, all Plus-Plus sets are compatible with each other.The BIG size is perfect for smaller hands or bigger ideas. This building set bundle includes a 15-piece BIG Basic Mix tube and a Green & White BIG baseplate duo.