Extend fetch time to early mornings and late nights with Chuckit! ZipFlight Max Glow fetch toys. Charge under bright light 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 fabric and glow in the dark rubber ring on the bottom helps pets and pet parents find the flyer no matter what side it lands on. PRODUCT NOTE: We recommend that dogs are supervised during playtime and remove the toy from the dog if it becomes damaged or parts become separated. Discontinue use if the toy is damaged. No dog toy is indestructible; and every dog interacts with its toys differently. Supervised play will go a long way toward helping toys last longer.