Swingline GBC 7709100 CombBind C450e Electric Binding System, Binds 500, 18w x 17d x 13h, Black 500-SHEET BINDING CAPACITY  Powerful, all-in-one binding system for fast, easy punching and binding. Binds 500 sheets. Excellent for high-volume corporate offices. 25-SHEET PUNCH CAPACITY  Electric punch pierces through up to 25 sheets at a time, helping to prepare them for binding. CONVENIENT COMBBIND  Professional-looking CombBind spines allow pages to lie flat for easy reading. Excellent for group projects and presentations. Accommodates a 2" maximum spine size. SPEEDY SEPARATOR  Exclusive paper separator divides stacks of paper into the right thickness for easy punching. Punches and binds letter size sheets. EASY TO FOLLOW DIRECTIONS  Thorough, easy to follow instructions are printed directly on the binding machine, allowing anyone to use it without having to dig through a complex instruction manual. BUILT TO LAST  GBC stands behind this high-quality binding system with a limited one-year warranty. ACCESSORIES AVAILABLE  Designed to work best with CombBind Binding Spines (sold separately) up to 2. Neat binding spines are suitable for use in all presentations.