... resistant,better thermostable,ametaboly berglass truck tonneau cover: .Made by Fiberglass,FRP (Fiber Reinforced Plastics),highly corrosion resistant,better thermostable,ametaboly.2 ... cover,it is propotious to DIY (do it by yourself).Fiberglass Tonneau coserIt's much stronger, more durable and longer lasting ... , 1.53m BedB-6112006+MazdaBT-50Extended Cab, 1.75m Bed Fiberglass truck tonneau cover