Wilson Jones 86640 Ultra Duty D-Ring View Binder w/Extra-Durable Hinge, 4" Cap, White Locking D-Ring holds 40% more than standard round rings. Easy to insert customized spine labels - EasySpine(TM) insert sleeve keeps spine from ripping or folding. No-Gap(TM) locking D-rings feature stays aligned to keep pages from falling out. Non-glare plastic overlay on cover and spine Create professional looking presentations quickly and easily