Finally, a do-it-yourself spray in bedliner!  All you need is an air compressor and you can spray in Al's Liner.  Requires the reusable Al's Liner spray gun and the Al's Liner kit.  The spray gun is cleanable and reuseable.  One Al's Liner kit is enough to do most 6.5' and shorter truck boxes.  8' trucks require 2 liner kits to cover the complete box.  For a video demo of how to install Al's Liner, visit Al's Liner.com