Speks are like magnetic putty, a stress ball and building blocks all in one. Rainbow Spectrum color, 512 rare earth 2.5mm magnets, steel building base, and splitter card & digital guide included in a plastic carrying case. Brand new - never opened. For ages 14+, keep away from all children 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.