A7 Invitation Envelopes (5 1/4 x 7 1/4) in assorted colors are perfect for invitations, announcements, cards, notes and holiday mailings. This pack of 50 assorted colored envelopes feature durable 80lb. Lux paper stock in Midnight Black, Navy, Ruby Red, Mandarin, Sunflower, Limelight, Seafoam, Vintage Plum, Candy Pink and 70lb. Grocery Bag. Each A7 is easily sealed by a Peel & Press strip located on the inside of the back flap, and its dimensions make it the ideal 5" x 7" card and photo envelope.Lux paper