Avery Heavy-Duty Vinyl EZD Ring Reference Binder w/Label Holder, 4" Capacity, Black: * Nonstick 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 percent more capacity than the same size round ring * Back-mounted rings allow pages to lie flat * Four inside pockets store unbound materials for improved organization * Nonstick, heavy-duty poly wont lift ink or toner off print pages * Nonstick, heavy-duty poly wont lift ink or toner off print pages * PVC-free