the glow in dark golf ball is great for playing on the course or practicing in your backyard at night ,is just like regular golf balls except they light up the night and make the game even more exciting .this golf ball is popular with ini golf and regular golf alike .who love bright re-usable glow in the dark golf balls for their night golf tournaments ,they are use a large replaceable 1.5"mini glow stick for extra brightness so that you will never lose your ball if you hit ball in to the woods .