The blueprint edge binder is used with Alvin edge binding tape made of a tear-proof PVC material to protect, organize and color-code valuable documents such as blueprints, charts, and drawings. The tape is sold separate in boxes of 10. The rolls are 1/2" wide by 80 feet long with a core size of 1 3/8". When used together, the edge binder and tape help extend the life of frequently handled papers and group like materials together.