These amazing Flasher Balls light up when struck and glow for several minutes after they start flashing. This give you plenty of time to get to your next shot in the dark. These night glow golf balls are really fun for pitching into a glow stick net at parties, putting on the green or actually playing a short course. Assorted colors. Sorry, you can't specify a color because they all look the same until they start flashing. Colors range from green, orange, white, purple. These are a blast!