These reflectors, illuminated by your landing light(s), will outline your runway very effectively making for tension-free landings or evening departures from your field. It has been demonstrated that most general aviation aircraft will get very well defined runway edges thru the use of these reflectors. They have been in use on this airport (3L2) for over the past ten years – standing up to the freezing winters, searing heat and relentless summer sun of the southern Nevada desert. Their reflectivity is comparable to the initial effectiveness. The manufacturer of the reflective sheeting, Reflexite, warrants the reflectivity for a period of at least five years. We are experiencing longer.