A2 Invitation Envelope - 70# Brown Basis Text (4 3/8 x 5 3/4) - Basis Announcement Series (Box of 500) A Quantity of 500 - A2 Invitation Envelope - Basis White 70# Basis White Paper - Standard Gummed Flap. Perfect for Greeting Cards, Greeting cards, Weddings or any announcement. This envelope may be sourced from any one of a number of top brands. Ships via UPS Ground