It's 6:00pm, your just getting home from work and your dog is going ape #$@& crazy when you walk in the door. But it's getting dark outside because it's getting darker earlier. Good thing you have your handy Glow Ball to play with Fido and get all that energy out! Hold it under a light to get a good glow and let the fun begin. It's really funny when you see your pup running in the dark with only the glow ball in sight. I bring a small flashlight with me to keep the glow going.