Whether you want a system for comb and 3:1 pitch wire binding, or a 3:1 and 2:1 wire pitch binder, the new Magnum Duo range is the perfect choice.
Both systems are suitable for A4 / 8.5x11" & A3 / 11x17" size documents and can simply switch between both binding styles in a second, i.e Comb to Wire.