Heavy-Duty Binder with One Touch EZD Rings, 4"" Capacity, Black, Sold as 1 Each Non-stick Heavy-duty EZD? ring binder with OneTouch? open and close triggers, back-mounted locking Gap Free? rings and four inside pockets. One Touch? mechanism lets you open, close and lock your binder in one easy step. Gap Free? feature prevents ring misalignment so pages turn smoothly. Locking EZD? ring has up to 50% more capacity than the same size round ring. Back-mounted rings allow pages to lie flat.