Mini Binding Machine 1,Punch System: 21/4 or 21/3 holes 2,Max Binding:50 sheets 3,Max punching:4 sheets 4 ... ,ISO9001,BSCI Mini Binding Machine 1, Operation Methord: Manual 2, Punching System: 21 / 4 holes 3, ... or 1 sheet cardboard cover (230g/m2) 6, Max Binding Capacity:Max. 50 sheets. 7, Net Weight: 1.3 ... 435*152*75mm9, ISO9001:2000, BSCI & UL certificated company binding machine