Send pamphlets and brochures with ease using durable envelopes Designed for flat, yet bulky, materials that can't be folded, like pamphlets, brochures, sales literature, booklets, annual reports, magazines and catalogs. Rectangular flap with gummed seal for easy closure. Made of 70-lb paper. Sturdy paper stock prevents materials from bending in transport. LUX Booklet Envelopes, 6in. x 9in., Avocado Green, Pack Of 250 is one of many Booklet Envelopes available through Office Depot. Made by LUX.