Smead Letter Filing Envelope - 8 1/2" x 11" - 1 1/4" Expansion - Polypropylene - Clear - 5 / Pack

Poly String and Button Booklet Envelope is made of tough, brightly colored polypropylene for long-lasting durability. It features gusset that expands up to 1-1/4" to accommodate bulkier materials. Envelope's heavy-duty, string-and-button closure is designed for everyday use.