They’re giant, squishy interlocking squares. Connect them together – it’s a play mat. Stand them up – it’s a fort. Snap them this way and that – it’s a cube. Spread them out from A to Z – it’s a jumbo alphabet chart. Interactive play with letters and colors enhances early learning. Plus, the high-density foam is durable enough to play on and keeps away the cold floor chill. Mix and match with other Edushape products, including Edushape Edu-Tiles 16 Piece Edges & Corners Set for Playmats.