... (Fiber Reinforced Plastics),highly corrosion resistant,better thermostable,ametaboly berglass truck tonneau cover: .Made by Fiberglass,FRP (Fiber Reinforced Plastics),highly corrosion ... unsealling,credible locking up4.Nice externality,good inosculating of the cover and carriage,with black skin-lines lacquer5.There are ... 53m BedB-6112006+MazdaBT-50Extended Cab, 1.75m Bed Fiberglass truck tonneau cover