Wiro Binding

This binding most commonly used in Calendars, Project Reports, Manuals, Catalogues also.
Wiro Binding is also known as Twin Loop, Double-Loop, Double-O, Duo-Wire, or simply Wire Binding. It almost looks like spiral binding. But in this binding used well-synchronized squire metal wire. These binding looks have a very distinctive look

It can hold up-to 100-120 sheets.