GBC Binding Combs Plastic 21 Ring 440 Sheets A4 45mm Black Ref 4028186U [Pack 50] - 335027

A4 size, 21-ring, (available in 13 diameters and four colours) For use with all Rexel and GBC standard comb binding machines Capacity: 440 Sheets Size: 45mm Boxed 50 Black - 335027