Wilson Jones 3 Inch 3 Ring Binder, Heavy Duty D-Ring View Binder, Extra Durable Hinge, White (W385-49W) 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