SpineVue Poly Binder features a wraparound, translucent overlay that allows you to insert a single letter-size sheet to create title information on all three sides of binder simultaneously. No more time-consuming trimming or fumbling with difficult insert sheets for your binder. Nonstick, transfer-safe, PVC-free polypropylene will not damage photos, laser printed papers or photocopies. Free templates are available online. Binder also features spine-mounted round rings, exposed rivets and a clear inside pocket that holds 25 sheets. 1 ring capacity holds 225 approximately letter-size sheets."CRD18115CB. 18115CB. Cardinal Cardinal SpineVue Poly Binder with Round Rings.