CFS Products 10-mm (3/8") Binding Coils - Coil10 - Pre-Sized to fit Letter Sized Paper - 4:1 Pitch (4 Holes per inch) - 12" Long - Compatible with GBC, Trubind, Fellows Binding Machines - 100 Per Box

CFS Products binding plastic coils are one of the most popular traditional binding methods available. They consist of a continuous spiraled coil that is made of a durable and flexible plastic. To bind, these spiral coil binding spines are spun through several closely spaced holes, and then crimped in on the edges. They allow your book pages to flip all the way around from front to back, and are extremely flexible and durable, so will bounce-back to their original shape, even after heavy use and bending. This makes them the best binding solution for schools, traveling sales people, product manuals, and so much more. CFS Products binding coils offer a more modern and durable way to bind books over the traditional comb spines, while still being affordable and simple to use. A benefit of spiral binding coils over many other binding methods it that, coil bound books have the ability to flip pages completely around a full 360° without damaging the contents, so they can lay flat and stay flat.