Made from rare earth magnets, Speks Magnet Balls are the most fun stress-relief desk toy around! Keep a set on your desk or carry them in your pocket to break that pesky nail-biting habit. Make all sorts of shapes, combine colors + create unique magnetic sculptures! Each package contains 512 Speks, with each ball measuring 2.5 mm. Comes with a carrying case + 16 page starter guide. Just, please, don’t eat them. Choose gunmetal, moonstone, silver, gold, amethyst or rose gold.