A4 Foil Lined Invitation Envelopes (4 1/4 x 6 1/4) w/Peel & Press - Black w/Red LUX Lining (50 Qty.) | Perfect for the HOLIDAYS, RSVP Cards, Announcements, Notes, and More! |FLBK4872-01-50 Size: A4 Foil Lined Invitation Envelopes / 4 1/4 in x 6 1/4 in / 4.25" x 6.25" / 108mm x 159mm Quantity: Pack of 50 Color: Black w/Red LUX Lining USES: Invitations, Announcements, Holiday Cards, Greeting Cards, 4 x 6 Cards, 4 x 6 Photos, Letters, Personal Mail, Direct Mail. EVENTS: Weddings, Parties, Holiday, Corporate, Banquets, Showers, Birthday Printable on off-set printing presses and some home printers.