QuickFit PRO Heavy-Duty Single-Touch View Binder, Locking D Rings, 4 Inch, Black - 4" (101.60 mm) Binder Capacity - Letter - 8 1/2" (215.90 mm) x 11" (279.40 mm) Sheet Size - 700 Sheet Capacity - 3 x 4" (101.60 mm) Ring(s) - Fastener(s): D-Ring - Pocket(s): Inside Front & Back - Polypropylene - Blac