Binder features unique XtraLife material that won’t stick to cover title insert or materials stored inside, including photos, laser prints and photocopies. Material is stronger than vinyl so seams won’t split or hinges tear. Designed to endure extreme temperatures, binder is cold-crack tested to negative 50 degrees Fahrenheit. Its locking slant-D rings hold up to 1,300 letter-size sheets (25 percent more material than same-size round rings). Binder contains post-consumer recycled material.