Wilson Jones Ultra Duty D-Ring Binder with Extra Durable Hinge, 3-Inch, Dark Red (W876-49-195) Single-touch trigger opens all 3 rings with just one finger 3 inch D-Lock rings hold 40% more paper up to 670 sheet capacity Features our strongest binder covers for years of reliable use; Custom formulated, PVC Free polypro material lasts up to 10x longer than vinyl D-Lock, spill-free, never-gap rings ensure excellent paper security by closing tightly Four interior pockets provide additional storage