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.Paper weight: 70 lbs..Choose from an assortment of delightful colors and send your next invitation or letter in style.A7 style is a multipurpose envelope, ideal for social and announcement functions, it may also be utilized as an outer envelope for invitation purposes.Avocado.Laser and inkjet printer compatible.Material: Paper.Make an earthy statement with this collection of colors found in nature and natural materials.Closure: Peel and press.Size: A7 (5 1/4" x 7 1/4").Boasting a smart-looking square flap, the A7 envelope fits inside envelope sizes A8, A9, A10.Finish: Smooth.LUX A7 Invitation Envelopes (5 1/4 x 7 1/4) are perfect for Invitations, Weddings, Announcements, Photos, and so much more!.The A7 Envelope (5 1/4" x 7 1/4") in 70lb. Avocado is the bold color of its namesake fruit. Perfect for invitations, announcements, business or social mailings, and more. Seal by convenient adhesive strip along the square flap. Available printed or plain.