Plastic coil binding (also called Spiral Binding) is our most economical binding option for books over 52 pages. This binding is an incredibly durable and flexible way to bind books, making it one of the most popular document binding solutions on the market today. A coil looks
like a spiral-bound notebook, with a continuous plastic spine that spins around into many loops. There are many colors to choose from (48 or fewer books will default to black coil), enabling you to coordinate the binding with your theme or cover.  Coil works great for all publications
– cookbooks, calendars, history books, etc. It is very popular as the coil binding allows the book to lay flat or even fold back on itself to take up less space on the table or counter.
Plastic Coil Binding with Tabbed Dividers: