Quality Park Jumbo Kraft Envelopes - Catalog - 15\"W x 20\" L- 28 lb - Kraft Description: Extra-large, open-end envelopes are ideal for protecting and transporting blueprints, proofs, artwork, architectural drawings and other large material that should be stored flat. Flaps are ungummed. Envelopes are made of 28 lb. Kraft stock. Features:Product Dimensions: 15\"W x 20\" LWeight: 28 lbKraftCountry of origin: USBrand Name: Quality ParkModel No: 2088-QUA42355