Extang Tool Box Tonno Truck Bed Tonneau Cover | 32770 | fits Dodge Ram Short Bed (6 1/2 ft), 1500-02, 1500/2500-03-08 (incl Mega Cab) L-Channel Rail Bridges the Toolbox-To-Tonneau Gap For Perfect Fit L-Channel Rail also provides a seal against the box Toolbox Tonneaus Fit Most Standard Size Toolboxes, 18-20" Exclusive And Patented All-Climate Tarp Design Adjustable Snaps and Bows For Easy Use In Cold Weather