Outline the fairways, greens, and tee boxes easily utilizing LED Runway Markers! Simply place 2 yardage markers on each side of the fairway every 25-35 feet, to create an amazing runaway effect. Dimensions: Length: 12 Inches LED Color: Green To activate your 1 Dozen 12 Inch LED Runway Markers, just press the power button and you’re ready to go. Comes ready to use with AG13 batteries.