Extang Tool Box Tonno Truck Bed Tonneau Cover | 32630 | fits Mazda Short Bed Plus (6 ft) 94-11 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