For the smoothest finish on the bottom of your kiln-fired projects. Quicker and easier than frequent re-priming. Bullseye logo printed on the bottom side. Instructions included. Each piece good for one firing only. Roll of 65 ft by 20.5 inches (19.8 x0.52 m). For best results, download the Bullseye ThinFire Shelf Paper PDF and follow the instructions closely.