Flash & Glow Large Red Flashing Glow Ball for Dogs, Safety-Sealed Durable 2-3/4" retriever ball flashes on impact & glows after exposure to light. Available in your choice of color! Durable, textured surface makes it easy to fetch & throw. Easy-to-clean waterproof ball floats in water for added fun! Made from 100% non-toxic materials. Shrink-wrapped to insure they arrive clean & safe!