A2 Invitation Envelopes (4 3/8 x 5 3/4) - Midnight Black - Midnight Black (50 Qty) | Perfect for Invitations, Announcements, Sending Cards | F-4570-B-50 Size: A2 Invitation Envelopes - Midnight Black / 4 3/8 in x 5 3/4 in / 4.375" x 5.75" / 111mm x 146mm Quantity: Pack of 50 Color: Midnight Black USES: RSVP Cards, Invitations, Announcements, Notes, Greeting Cards and Thank you Cards EVENTS: Weddings, Parties, Holiday, Corporate, Banquets, Showers, Birthday Printable on off-set printing presses and some home printers.