These envelopes feature a versatile color that makes them an excellent option for personal, professional, and special occasion related mailing purposes! Each one of these envelopes features a straight flap opening with a dependable gum closure to keep the items placed within secure as they are transported through the mail. Use these A2 envelopes to send Thank You cards, small notes, RSVP cards, and more.Details:Available in multiple colors4.375" x 5.75"24 lb.50 envelopes Made out of 30% recycled smooth paper