Comb Binding Machine (YD-CM660) Attractive Silver color metal Shell with black aluminum Base and Binding Handle; Convenient large wastepaper box; Paper setting on the base offer exact punching position setting; Professional design and easy operating by Manual; Suitable for binding with full size of plastic comb and Quick binder. * Punching ability: 20 sheets (70-80g/sheet); * Binding capacity: 500 sheets (70-80g/sheet); * Margin depth adjustment: 3-9 mm; * Adjustment push-pull pins included (7 pins release); *Available for paper size: A4 or more. Full sizes of plastic combs available on requested.