This is the perfect ball for the pooch who loves to catch, chase and fetch! Why? Because now he doesn't have to stop playing just because it gets dark outside! The Flash & Glow Ball begins to flash on impact, and keeps flashing for 25 seconds...which is plenty of time for your doggie to run around and find it. Bring it along to the pool or lake for your next swimming excursion, too! The Flash & Glow Ball floats!