Avery Heavy-Duty Binders with Locking One Touch EZD Rings & Thumb Notch - 5" Binder Capacity - Letter - 8 1/2" x 11" Sheet Size - 1050 Sheet Capacity - 3 x 5" Ring - Fastener: Ring - Pocket: 4, Internal - Polypropylene - Blue - Recycled - Pocket, One