S4GA retro-reflective taxiway markers are used for marking taxiway and apron edges at airports. Highly visible in all weather conditions, day or night. Reflective markers reduce the “sea of blue” effect experienced by many pilots. It doesn’t require electricity – reflects aircraft landing and wing tip lights. It can be fixed directly into the ground or pavement. Installation and replacement is easy, thanks to self-clamping fixing concept between post and in-ground base.