Albyco Wire O Binding Combs 7.9 mm Book Rings, Spiral Binders, Paper Wirebind, Binder Spikes Wire, 5/16 Inch Up to 45 Sheets Pack of 100 White

Material: metal Ring 7.9 mm, 3:1, metal, white, box of 100 pieces 34 buckles can be used on all metal binding machines Allows you to connect your folders without the risk of unpleasant opening of the comb Very nice finish for all your documents Very solid, the binding remains beautiful The folder can be rotated 360 degrees, making it convenient to use Document binding with metal wire combs effortlessly provides a professional result