... Handle comb Binding Machine 1,Punch System: 21 hole 2,Max Binding:350 sheet 3,Max punching:12 sheet 4,ISO9001,BSC Single Handle Comb Binding ... Machine 1,Item No:T32004-A2, Operation Methord: Manual 3, Punching System: 21 holes 4, Paper Formats ... adjustable easilyBig hole design allows easy to take single handle comb binding machine