UWS Fender Well boxes mount over the wheel wells and make use of all of the available space in an area not often used. These boxes open toward the center of the bed and have a center locking/latch and have a full-length piano hinge for strength. Choose from Driver (D) or Passenger (P) side units. This box also comes with a floor and an opening rear door with drawers for storage. Includes 3 sliding plastic drawers equipped with stainless steel ball bearings for easy gliding. Drawers have removable dividers making it easy to configure the drawers. These make excellent storage units for 5th wheel trucks applications.