Fellowes Quasar+ 500 Plastic Comb Binding MachineDescription The Quasar+ 500 comb binder is engineered for frequent use in office environments. Punch up to 25 sheets of 80gsm paper at a time with an overall binding capacity of 500 sheets, using a maximum comb size of 50mm. Quasar+ 500 is designed with user friendly features that allow straightforward, efficient document binding, including an adjustable edge guide for accurate paper alignment and a storage tray with a comb and document size guide