Extend fetch time to early mornings and late nights with Chuckit ZipFlight Max Glow fetch toys. Charge under bright light for 5 to 10 minutes for 20 to 30 minutes of high-visibility; lighted play. Max Glow products are made with a safe; high-quality photoluminescent material that is both chemically and biologically inert. Recharge in seconds with a bright flashlight. Fast charging Max Glow rubber; EVA foam; and 2100 denier polyester construction. Glow-in-the-dark 3D print on the fabric and the glow-in-the-dark rubber ring on the bottom helps you and your dog find the flyer no matter what side it lands on.