JAM PAPER 4Bar A1 Invitation Envelopes with V-Flap - 3 5/8 x 5 1/8 - White - 25/Pack White 4Bar Envelope Size: 3 5/8 x 5 1/8 inches Quantity: 25/pack Fashioned from high quality 24 lb paper and features a straight flap gum closure These envelopes are perfect to use for sending invitations, greeting cards, RSVP's, thank you cards, gifts for birthdays, graduations, holidays and more