The Fellowes Quasar-E 500 manual binding machine is ideal for use in the mid to Large Office | Electric punching for ultimate ease of use | Punches up to 25 sheets at a time (80gsm) | Binds documents up to 500 sheets - max comb width 51mm | Storage tray with patented comb & document measure allows user to select quickly | Vertical sheet loading ensures consistent punch alignment | Adjustable edge guide aligns sheets accurately | Includes binding starter kit for 10 documents | Compatible with A4 21 loop plastic binding combs | 2 year warranty