Light up your life with Light Up Molecule Ball. Featuring a LED ball nestled among 3/4″ translucent spheres in assorted bright pastels, this smooth, soft, squishable, thermoplastic, elastomer ball lights up when squeezed. Pick one up and play. Feel your stress melt away. Squeezing improves finger flexibility and hand strength too. Larger spheres give Light Up Molecule Ball a firmer feel than Light Up DNA Ball. Measures 2 3/4″ diameter. Available individually and in a 12-pack.