Let JAM Paper 12" x 15 1/2" Open End Catalog Commercial Envelopes do the work of mailing large correspondence with ease. Made from sturdy 28 lb. paper and measuring 12" x 15 1/2" in size, these Brown Kraft Manila catalog envelopes are the most efficient option for delivering catalogs, reports, magazines, business mailings, blueprints, artwork, important documents and more. Each envelope features an open end opening, straight flap, and moisture-activated gum closure to ensure a secure seal. These envelopes are also ideal for organizing personal papers and documents in the office, school and home. This pack includes 100 envelopes.Details:Brown Kraft12" x 15.5"28 lb/75 gsmOpen end openingStraight flapGum closure100 envelopesManila paper