Extang Revolution Roll-up Truck Bed Tonneau Cover | 54430 | fits Dodge Ram (6 ft 4 in) 09-18, 2019 Classic 1500 An Incredible Roll Up Tonneau Cover With A Revolutionary Design Automatic Tension Design For Quick Latch And Go Operation Provides A Stylish Near Flush Fit Side Rails Are Pre-Drilled for Quick and Easy Clamp Placement Automoatic Tension System Keeps Tarp Tight And Looking Great