A7 Contour Flap Envelopes (5 1/4 x 7 1/4) - Midnight Black (50 Qty) | Perfect for Invitations, Announcements, Sending Cards, 5x7 Photos | 1880-B-50 Size: A7 Contour Flap Envelopes / 5 1/4 in x 7 1/4 in / 5.25" x 7.25" / 133mm x 184mm Quantity: Pack of 50 Color: Midnight Black USES: Invitations, Announcements, Holiday Cards, Greeting Cards, 5 x 7 Cards, 5 x 7 Photos, Letters, Personal Mail, Direct Mail. EVENTS: Weddings, Parties, Holiday, Corporate, Banquets, Showers, Birthday Printable on off-set printing presses and some home printers.