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.Natural.Choose from an assortment of delightful colors and send your next invitation or letter in style.Comes in Natural - 100% Recycled, 80lb. Text Paper.Dimensions: 5 1/4"L x 7 1/4"W.Laser printer compatible.Material: Paper.A modern way to convey quality and add personality, with sparkle and shimmer that stands out.Paper weight: 80 lbs..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.A7 Invitation Envelopes (5 1/4 x 7 1/4) are perfect for party invites/thank you cards/wedding invites/announcements/5x7 photos.Looks amazingly like the metal or mineral the color is named for.A7 style is a multipurpose envelope, ideal for social and announcement functions, it may also be utilized as an outer envelope for invitation purposes.Closure: Peel and press.Peel & Press Sealing Method.Finish: Smooth.LUX Size A7 envelope in natural color measuring 5 1/4" x 7 1/4" has basis weight of 80 lbs features a smooth finish and is sold as 50 per pack..The A7 Envelope (5 1/4" x 7 1/4") in 80lb. Natural 100% Recycled is a cream-colored, classy envelope with the added bonus of being environmentally friendly. Perfect for holding cards, invitations, photos, announcements, mailings, and more. Seal by convenient adhesive strip along square flap. Available printed or plain. 100% post consumer fiber, FSC certified, no new trees, neutral pH, chlorine free, archival, acid free.