2-in-1 electric binding: uses both traditional CombBind and editable ZipBind spines. QuickStep instructions are easy to follow ensuring simple operation. Color-coded document size guide helps determine the correct spine size quickly. One-touch electric punching up to 15 sheets with the push of a button. Includes comb selection guide and adjustable edge guide to make perfect binding of up to 330 sheets a snap. Binding Spine Type: Comb; Binding Sheet Capacity: 330; Punching Sheet Capacity: 15; Maximum Binding Edge: 11″.