It's a toy. It's a stress reliever. It's a super-strong magnet. Snap, pull, mold, squeeze and construct an endless variety of shapes with the 216 included BuckyBalls. Each spherical BuckyBall is made from a rare-earth, super-strong magnetic metal known as neodymium. With BuckyBalls, you can create cool shapes like cubes, cylinders, and pyramids. You can even play "darts" on your refrigerator. Or just use them as small, but strong magnets for displaying photos or holding papers.