These lovely little bicycle index labels stand out in a way that will make you smile every time you look for a page. Each set comes with 24 artistic index stickers and 24 numbers (two sets of numbers 1-12). The numbers can be affixed to the index stickers. The index stickers measure about 0.5 to 1 inch wide from wheel to wheel and are about 0.5 inches high. They have fairly strong adhesive, so though you can peel them off you probably don't want to attach them to fragile book paper unless you want them to be permanent. Ideal for office use, scrapbooking, organizing school notes and more!