The original, MAGNA-TILES® Classic sets started it all. The Classic 37-Piece Set is the perfect introduction to the MAGNA-TILES® world and includes vibrant-colored squares and triangles — all the classic magnetic shapes that make building amazingly versatile and fun. Explore math, science, spatial, and tactile skills…learn shapes, colors, matching, and basic building skills…while giving kids open-ended play potential to create anything they can imagine.