Use these for a variety of applications including: door panels in cars, rear hat trays in cars, on the outside of furniture and the inside of furniture arms. A Pressed, treated Kraft paper, with an invisible polyethylene sheet barrier. Meets Ford, Chrysler and Kenworth OEM Specifications. You can sew these with any commercial sewing machine. They are 100 point or about 1/8" thick. These are sold with a minimum of 4 sheets.