This Filmoplast® Fabric Book Repair Tape is made of natural cotton cloth and features waterfast dyes (non-bleeding) and a release liner. Book Repair Tape is 10 mil thick with 22 lbs. of tensile strength that is archival safe. The natural cotton fabric cloth tape conforms easily to book spines of all sizes. The solvent-free, pH neutral acrylic pressure-sensitive adhesive requires no machine, and will stick with just pressure. The release liner offers easier cutting, measuring and application of the tape. Each book repair tape roll is 3" W x 33' L.