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 in. (19.8 m x 0.52 m). For best results, download the Bullseye ThinFire Shelf Paper PDF and follow the instructions closely.