Punch and bind documents all in one place. The GBC CB25E CombBind Electric Punch and Bind Machine makes it easy to add a professional finish to your documents. It uses sleek comb binding spines, which allow pages to lay flat for easy reading. Great for shared use in busy offices. This all-in-one electric machine punches up to 25 sheets at a time. It also binds up to 500 sheets when using a 2" spine. For best results, use GBC CombBind spines, sold separately. This machine is compatible with 1/4" - 2" diameter spines. Spines and adjusts to accommodate documents up to 12". It has a lightweight, compact design, quiet operation, a chip tray and a built-in storage compartment. GBC stands behind its quality with a limited 1-year warranty.