[[Glow Balls]: Boost reflexes within minutes. Start with one ball then gradually add more for increased challenge improving coordination and easing anxiety. [Entertainment]: Charge under sunlight or UV light for 1-2 minutes providing a glow lasting up to 2 hours. [Material]: Made from tear-resistant BPA-free thermoplastic rubber designed to last. [Glow on Walls & Ceilings]: Glow in the dark after exposure to light enhanced with UV light for a brighter effect. [Perfect Gift]: Ideal for all ages great for stress relief and holiday gifting.]
