Mark the area of your tee boxes with our 12" Blue Tee Box Markers. Our 12" tee box marker set comes with 2 inflatable balls and 2 blue LED inserts that fit inside the ball and illuminate the tee box for night golfing. Each set comes with 2 stakes to easily place in the ground. Our Blue Tee Box Marker Balls can be used to mark walkways at outdoor events and on a golf course for a nighttime golf outing. Some assembly is required. Please order in increments of 1 set (2 inflatable 12" balls, 2 blue LED inserts, and 2 spikes). Also available in green, pink, and white.