A4 Line Binding Machine 34 Square Holes Hole-punching Machine 3:1 Pitch Double Loop Wire Binder Office Home Binding 4x4 Hole ,Easy to Use

Hole size: 4X4mm Applicable paper: A4 (30cm or less) Binding capacity: 120 sheets, Punching thickness: 12 sheets of 80g paper Applicable consumables: double iron ring