Plus-Plus is a unique construction toy. Its one simple shape, which looks like a double plus sign, contains endless possibilities. Assemble pieces flat to create a 2D design, or build 3D structures. Even curves are possible. Precision crafted in Denmark, Plus-Plus sets are compatible with each other. Set contains everything you need to get started: 300 pastel pieces, 100 neon pieces and a baseplate. Includes a guide book with step-by step instructions to build flat mosaics and 3D creations - animals, people, buildings and more! Each piece measures 3/4 x 1/2". Baseplate measures 4-1/2" square. BPA-free and phthalate-free. For ages 5 and up.