50 A8 (5 1/2&rdquo; x 8 1/8&rdquo;) Fits 5x7 Invitation Photo Wedding Announcement Envelopes White White A8 Size Envelope (5 1/2 x 8 1/8) Square Flap Inkjet & Laser Compatible Booklet Style 24lb bond / 60lb text (90 gsm) Paper Stock Moisture / Gummed Seal Box of 50 Made in the USA