More stylish and modern than simple black or white, these Dark Gray Fastback Super Strips are a great choice for binding documents, books, or reports. They are easy to use with the Powis Fastback systems and you can even foil print them to add a luxurious touch to the spine of a book or report. Whether you want to bind a 10 page file or 350 page book, these super strips are ideal for you. Just select between the narrow, medium, and wide designs – they are available in an 8.5'' and 11'' length, all in packs of 100.