LUX Envelope in glossy white color features a moistenable glue flap for secured sealing. Envelope measuring A7 (5 1/4" x 7 1/4") has a paper weight of 6 pt and can be used as an outer envelope for invitation purposes, sold as 500 per box..Opening: Square flap.A7 style is a multipurpose envelope, ideal for social and announcement functions.Closure: Moistenable glue.Comes in Glossy White, 6pt. Text Paper.A7 Invitation Envelopes (5 1/4 x 7 1/4) are perfect for party invites/thank you cards/wedding invites/announcements/5x7 photos.500/box.Collection: White.LUX Envelope in glossy white color measuring A7 (5 1/4" x 7 1/4") features an elegant square flap and is perfect for social or announcement functions, sold as 500 per box..The A7 Envelope (5 1/4" x 7 1/4") in Glossy White is a shiny, strong square flap envelope. Photos, cards, invitations, business and social mailings and announcements standout in this sleek, reflective envelope. Seal by moistenable glue along flap. Available plain and printed.