Speks 2.5 mm magnet balls.
Made from rare earth, neodymium magnets, Speks magnetic balls are possibly the most popular desk toy ever made. Speks are like magnetic putty, a stress ball and adult building blocks all in one. Mash them around for oddly satisfying stress relief or build a shape to unleash creativity.
Contains 512 Neodymium rare earth magnets, a steel building base, and a plastic carrying case.