Letter-size poly snap-closure envelope gives you the storage space of a folder with the added feature of button flap closure to keep your papers from getting bent, spilled on or lost among other documents. Made of 0.18 mm Polypropylene. Ideal case for homework, documents, notes, coupons or photos. White plastic button snap closure seal. Opens on long side. Holds approx. 50-100 letter size sheets. Available in a variety of solid and translucent colors. *Free rush up to 800 pieces; for rush quantities above 800, please contact the factory.