GBC ClickBind is a modern and easy-to-use binding spine which will give your documents maximum stand-out for minimal effort, plus the flexibility to edit and revise individual pages as often as you like. The 34-loop spines zip and unzip using the clever ClickBind editing tool or by hand, so you can easily add or remove pages on the spot wherever you are. And the bound pages lie flat with 360 degree rotation for easy reading and convenient note taking and photocopying.