Extang Express Tonno Roll-up Truck Bed Tonneau Cover | 50800 | fits Toyota Tundra (5 1/2 ft bed) 07-18 (works with/without rail system) Repels Water And Protects Your Truck Bed/Cargo From The Elements Quick Release Levers At The Cab And Tail Rails Heavy Duty Bows Are Pre-Positioned and Roll With the Tarp Rolls Up to the Cab For Convenient Access and Easy Storage Rails Are Pre-Drilled for Easy Installation. No Tools Required