Dark purple is the color or nobility and power, so these Purple Fastback Super Strips are ideal for adding a refined yet eye-catching accent to your projects. Compatible with the Powis Fastback binding systems and printers, these 11'' long strips are easy to use and practical. Simply choose between the narrow, medium, and wide designs to order the perfect cover spines to suit your requirements. The first can bind from 10 to 125 pages, while the latter can be used for hard cover books of up to 350 pages. With 100 strips in every pack and our fantastic prices, you can save money on your binding projects and ensure a professional result at the same time!