Extang engineered Tri Fold style Tonneau cover. Fast, easy, no assembly required. No tools. Extang engineered with precision. 45 Degree steel corner brackets, commercial grade rails and I-Beam style Monster Bows™ provide unparalleled strength. SafetyKlamps™: Extremely strong glass filled nylon construction, will never break. Secure cab section by hand tightening thread clamps with built in heavy-duty handle. SpeedKlamps™: rear tail section clamps operate with spring action handle for instant fasten and release. Clamp conveniently stows away inside rail when not in use. MaxHinges™: ultra strong, rugged, double pivot design made of durable glass filled nylon and feature protective padding. Heavy-duty luggage style Hold-Tite™ fasteners secure the Tonneau in the open position at the cab. Provide quick and easy storage when hauling large cargo. The new signature series fabric with rich looking vinyl backed black canvas. Maximum strength warranty.