JAM Paper Navy Blue A7 Invitation Envelopes are some of our most versatile invitation envelopes! These envelopes measure 5.25 x 7.25 inches in size, making them perfect for standard sized invitations and greeting cards. Each one is made out of 28ln, high quality paper. Perfect for multiple home and office mailing needs, these envelopes feature a dark navy blue color that fits in with both professional and casual situations. This pack contains a convenient total of 25 envelopes! Whether you are planning a shower for a friend, an upcoming conference, a graduation party, or a dinner party, these envelopes are here to help you send out impressive invitations to all of your guests!