Quick Fit Binder features a unique overlay design that allows a single sheet to create a one-piece custom insert that wraps around the spine to the front cover. Customize your title sheet with free online templates. Overlay resists ink transfer. Locking, Angle-D rings are made of steel and hold letter-size sheets. Designed for frequent reference and longevity, heavy-duty construction includes PVC-free polypropylene and recycled solid board. Binder also offers an antimicrobial coating, two clear inside pockets and exposed rivets.