ONE-TOUCH® Easy Open® Slant D® rings open, close and lock with one simple motion. Heavy-duty construction equals lasting durability. ClearVue™ covers for three-sided customization: insert custom title sheets on the front, back and spine for a professional looking presentation. PVC-free. Binder Type: Ring; Binder Style: View; Binder Size Capacity: 4"; Binder Sheet Capacity: 880.