Business Source Basic Round-ring Binder - 2" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 3 Ring(s) - Fastener(s): Round Ring - Pocket(s): Inside Front & Back - Vinyl - Black - 1 lb - Recycled - Exposed Rivet, Non Locking Mechanism, Open and Closed Triggers - 1 Each Basic round-ring binder features two triggers on the ring mechanism that provide easy access to your documents. Back-mounted metal rings allow pages to lie flat. 2" capacity holds up to 475 sheets. Clear pockets inside front and back covers offer extra document storage with a 30-sheet capacity for each pocket. Design also features a sturdy chipboard core and exposed rivets. Three-ring binder is made of polypropylene.