Outer Diameter: 0.5" (13 mm). Inner Diameter: 0.25" (6.5 mm),Pack of 1440 labels. We have upgraded the product and the hole in the middle has been removed, making it more convenient to use and saving you time. Kraft. Blends in well with paper Tear-Resistant. Labels are made from vinyl, giving your documents the protection you need Suitable for school, home education, library and office documents, loose-leaf folders, calendars, etc. Also ideal to mend or style torn loose-leaf paper, make tags, protect address book pages and do VBS crafts