Make a strong statement with your mail by using JAM Paper Black Open End Catalog Envelopes. These solid black envelopes have a smooth finish so they both look and feel good for all your business needs. Each envelope is made from 24 lb. paper to provide the highest quality, durable envelope for your important documents. The thick paper, straight flap, and gummed adhesive closure ensures that your marketing materials, papers, and other items will stay sealed inside until they reach the proper destination.Details: Black 6" x 9" envelope size 24 lb.Straight flap with gum closure Available in multiple countsPaper