LUX Size A7 envelope in natural with red lux lining features a peel & press square flap for secured sealing. Envelope measuring 4 1/4" x 6 1/4" is inkjet and laser compatible with a paper weight of 70 lbs, sold as 250 per box..A7 Foil Lined Invitation Envelopes (5 1/4 x 7 1/4) are perfect for party invites/thank you cards/wedding invites/announcements/5x7 photos.Opening: Square flap.Choose from an assortment of delightful colors and send your next invitation or letter in style.Comes in Natural w/Red LUX Lining, 70lb. Text Paper.Collection name: Color linings.Material: Paper.Laser and inkjet printer compatible.A7 style is a multipurpose envelope, ideal for social and announcement functions; it may also be utilized as an outer envelope for invitation purposes.Boasting a smart-looking square flap, the A7 envelope fits inside envelope sizes A8, A9, A10.Grooved lining extends to a quarter of an inch from the bottom of the envelope and is the perfect complement to your elegant design for weddings, holidays or party invitations.Closure: Peel & press.LUX Size A7 envelope measuring 5 1/4" x 7 1/4" in natural with red lux lining is perfect to be used for social and announcement functions, sold as 250 per box..The A7 Envelope (5 1/4" x 7 1/4") in Natural with Red Foil Lining is an elegant spin on a traditional envelope. The grooved, red foil-lining and 70lb. weight make these envelopes special and perfect for mailing photos, cards, invitations and more. Seal by convenient adhesive strip along square flap. Available either plain or printed.