Comb binding machine: 1) Punching max.: 25 sheets of 80g up to 360mm 2) Individual, hardened and progressive punching pins 3) Vertical paper inserting for better alignment 4) Variable punching margin control from 2.5mm to 5mm 5) Separate binding control for more productivity 6) Inside all metal construction 7) Punching life cycle tested: more than 25,000 times (25 sheets a time) 8) Rigid cast aluminum machine base 9) Rigid cast aluminum handles 10) ABS plastic machine housing 11) Large capacity waste tray at front for easy removal 12) Foldable covers keeping dust away 13) Each machine has a first-class UniMate operation manual in English Models available in Beyonder comb binding range: 1) Beyonder C21: 21 fixed punching pins 2) Beyonder C3D: 21 punching pins, 3 selectable (no.15, no. 20, no. 21) 3) Beyonder C7D: 21 punching pins, 7 selectable (no. 15 up to no. 21) 4) Beyonder C21D: 21 punching pins, all selectable 5) Beyonder C24: 24 fixed punching pins 6) Beyonder C24D: 24 punching pins, all selectable 7) Beyonder C19: 19 punching pins (for American markets) Inner packing: 1pc/color box