No bubbling or surface wrinkles; unlike other options in the basic binder class, this set of 12 Economy binders have covers that are fully adhered and have a textured pattern that is tear-resistantRound ring binder holds 175 sheets with 1 inch capacity round ringPages lie flat because rings are mounted on the rear binder panel instead of on the spineExtra storage with 2 interior clear pockets; all Economy binders are made with nonstick PVC-free material—no ink transferEconomy view binder allows for customization on spine, front and back covers