These 24 lb. envelopes are perfect for sending party invitations, special announcements, business correspondence, reports, greetings and much more. Your message stays safe inside as both a gum and metal clasp closure helps ensure protection during delivery! Whether you are using at the office, school or home to get recipients' attention or match a theme, our envelopes promise superior efficiency. Each has an open end opening, gum and metal clasp closure, straight flap, and a smooth finish. Details:Black 6" x 9" 24 lb.25 envelopes