These smart combs from GBC take a different approach to binding paper. Their smart, modern look and feel is matched by the ingenuity used in their conception. Instead of having to use a large and unwieldy machine, they can be opened and closed using an inexpensive, handheld zipper tool. This means you can add and remove papers more easily and much more cheaply. They work with any CombBind punched paper, the 8mm spine holding up to 45 pages with ease.