Heavy-duty RV cargo slides can be used for a wide variety of applications, but are ideal for providing your RV greater storage capacity for under compartments. A variety of lengths are available to create the exact slide to fit your RV. ; Simplify cargo bay storage with handy pull-out cargo slides. Roller-bearing action. ; Made of heavy gauge steel, powder coat finish. ; Trim Kit optional. Choose from Superslide I trim listing.