styrofoam blocks, 6-count smooth polystyrene foam blocks for crafts, 4 x 4 x 4 inches matican craft foam blocks are a staple for kids' crafts and diy art projects at school and at home. simply use your imagination to customize and transform them into a variety of artistic creations. you can paint them, push pipe cleaners into them, glue on googly eyes, sequins, or felt to create various crafts from adorable animal figures and funky robots to christmas ornaments and much more! these polystyrene foam blocks provide endless possibilities for the creative mind and help kids develop stronger hand and eye coordination. this 6-piece pack offers hours of artistic fun when you put your creative mind to it!