Double Wire Binding Machine (YD-WM750) All metal made, argentate shell with black aluminmu base, punching and binding handle; Adjustable margin setting provides margin depth options from 2mm-5mm; Large plastic wastepaper box; Paper setting on the base limits exact punching position; Two options for hang twin wire; Adjustable all od pull-push pins; Punching dies: 34PCS, 4x4mm; Available for full size 3: 1 twin wire from 3/19-9/16; Available for paper size: A4 or more; Maximum 15 sheets (70-80g) per manual punch with easy operation; Maximum manual binding capacity: 120 sheets (70-80g). Full sizes of double OO wire in pre-cutting size and in spool available.