This Rail Kit includes front and back sofa base rails for the 64" Jiffy Sofa. This package is used for Jiffy bases that do not attach directly to the floors of the RV. They are used to uplift the Jiffy on a flat floor to raise the seat height. Simply bolt the frame onto the bottom of the Jiffy Seat, and then bolt the legs (item 141875 sold separately) onto the frame. Attachment may vary depending on where the Jiffy is being used. Mounting hardware is included. Bolt to the bottom of the Jiffy Seat with included hardware Rails & hardware only; leg kit (item 141875) sold separately | Camping World Rail Kit for 64" Jiffy Sofa