This combo kit includes both the liner kit and the gun kit. Al's Liner Urethane/Acrylic Coating System is designed to be the markets first and only professional grade urethane coating for Do-it-yourselfers. Be it Truck Bed Lining, Undercoating, Interior Coating, Chassis Lining or just General applications around your Shop and Home, Al's Serves up some serious protection no matter where or why you use it. Al's Liner was developed from one of the leading Industrial Protective Coatings and Truck Bed Lining systems. Established in the mid 90's, Al's has been used in so many different applications we could not begin to list them all. Our system is not reduced, this is why it must be spray applied, unlike many Roll-on coatings Al's provides the ability to apply it as thick or as thin as you like with a variety of textures and in the color of your choice. Al's Liner provides individuals the opportunity to apply a heavy duty acrylic/polyurethane protective coating to virtually anything. Al's Liner provides not only a high build and long lasting protective coating, but also offers the ability to tint and match an endless array of textures and colors. This gives you the options you need to protect and add an aesthetically pleasing finish to your projects. What makes Al's Liner Unique is the ability to protect all of your projects not only from everyday wear and tear, but it also gives you protection from the sun. Al's liner is 100% UV resistant. Your beautiful finish will not fade, no matter what color you spray. • Spray in any color. • Achieve a wide variety of textures. • Sprays in 4 easy steps. • You don't need a spray booth and minimal personal protection required.