Business Source Basic Round-ring Binder - 1" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 3 Ring - Fastener: Round Ring - Pocket: Inside Front & Back - Chipboard, Polypropylene - Black - 9.60 oz - Exposed Rivet, Non Locking Mechanism, Open and Closed Triggers, Double-trigger Metal Booster - 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. 1" capacity holds up to 225 letter-size 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.