Universal One - Economy D-Ring Vinyl View Binder, 4" Capacity, Black 20995 (DMi EA An exterior, matte-finish, transparent plastic overlay presents limitless customization options when you choose this binder. D-Ring design means you can store 25% more documents in this binder than a comparable one fitted with round rings. Say goodbye to page jamming and curling and hello to smooth page turning with this binder's D-Ring mechanism. Open and close triggers effortlessly for fast access to binder contents. Identify the material you need fast when you spot this binder's handy spine label.