Eco-friendly, D-ring binder is made with a high percentage of post-consumer material, contains no VOCs and is 100 percent recyclable. D-rings hold more sheets than round rings for greater capacity in the same-size binder. Durable, Elements three-ring binder is built for long-lasting performance and resists heat-warping and cold cracking. Heavy-duty rings with boosters withstand repeated use. Open and close triggers allow easy access to your letter-size documents. With a 2 capacity, binder holds up to 500 sheets. Binder also features exposed rivets.