Binders

Heavy Duty Bookbinding Machine, A4 Paper Double Coil Iron Ring Binding Machine,34 Square Holes,Adjustable Margin,Suitable for A4 Paper,for School Office Binding 1.Margin adjustment knob, machine rear margin adjuster, left and right pull can adjust the size of the margin, margin can be 2.5MM, 3.5MM, 4.5M adjustment, The base is equipped with 4 rubber feet, non-slip solid, beautiful, rubber non-slip mat... Heavy Duty Bookbinding Machine, A4 Paper Double Coil Iron Ring Binding Machine,34 Square Holes,Adjustable Margin,Suitable for A4 Paper,for School Office Binding