LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) are perfect for party invites/thank you cards/wedding invites/announcements/5x7 photos, sold as 50 per box.Opening: Square flap.Choose from an assortment of delightful colors and send your next invitation or letter in style.Dimensions: 5 1/4"L x 7 1/4"W.A7 style is a multipurpose envelope, ideal for social and announcement functions, it may also be utilized as an outer envelope for invitation purposes.Finish: Vellum.Comes in Wasabi, 80lb. Text Paper.Laser and inkjet printer compatible.Material: Paper.Closure: Peel and press.Boasting a smart-looking square flap, the A7 envelope fits inside envelope sizes A8, A9, A10.A7 Invitation Envelopes (5 1/4 x 7 1/4) are perfect for party invites/thank you cards/wedding invites/announcements/5x7 photos.Peel & Press Sealing Method.LUX Size A7 envelope in wasabi color measuring 5 1/4" x 7 1/4" has basis weight of 80 lbs, features a vellum finish and is sold as 50 per pack..The A7 Envelope (5 1/4" x 7 1/4") in 80lb. Wasabi is an electric chartreuse envelope, perfect for stand-out invitations, business or social mailings, and announcements. Seal by convenient adhesive strip along the square flap. Available printed or plain.