Ultra aggressive adhesive keeps the 1 inch tape firmly in place on most clean surfaces when even pressure is applied Cloth tape is made of 13 mil. thick vinyl-coated cotton cloth and is archival safe 15 yard total one inch wide tape finished on 3" core and cleanly shrink wrapped Whether it's for Libraries, Schools or just binding hymnals, book binding repair is easy with this durable, colored tape All Bookguard products are proudly made in Kansas, the Heartland of the USA Tough and durable, this premium one-inch wide fabric tape from the "Bookguard" brand is a hefty 13-mils thick, which makes it substantially strong with a 45 pounds-per-inch tensile strength. The tape has a matte finish, and it's made of cotton cloth with a vinyl coating. Its high resistance to abrasion and abuse (due to its high thread count) over time ensures that it wont crack or easily fall apart - there's a reason "Bookguard" has been a favorite book-binding tape for more than 30 years! The brown cloth material of the tape is highly-conformable to most surfaces, and you can easily write on the tape's surface with a felt-tip marker. Its ultra-aggressive adhesive permanently adheres to the most difficult surfaces, including vinyl. Each finished roll of "Bookguard Premium-Cloth Book Repair Tape" is cleanly shrink wrapped before shipping.