"Jeep Fender Flares by Bestop are constructed of reinforced, heavy-duty urethane that is impact resistant and UV stable. The design blends the classic rounded look of the early Jeeps with modern, sweeping lines. And those sweeping lines do more than just look good; along with thicker gauge material running along the outside edges of the flares, they form an integral Perimeter Frame™. The Perimeter Frame™ provides rigidity without sacrificing trail flex and keeps the flares from sagging. With up 6" of fat tire coverage and an extra bit of width at the bottom of each flare, you just can't get a better set of Jeep fender flares. And, of course, installation of these Jeep fender flares as simple as bolting them on - no drilling is required. Jeep Fender Flares are available with stone guards or 45? rocker extensions."

(taken from the Bestop Website: www.bestop.com)