All of the invitations featured in this secton are square invitations that are 4 7/16" x 6" in size. These wedding invitations are all printed with the raised thermography ink process. Wedding Invitations have 2 envelopes - inner and outer envelopes. The outer wedding envelopes have adhesive on the flap. The outer envelope is not lined with foil. The inner wedding envelopes do not have adhesive or gum on the flap, but the inner envelopes can be lined with foil for extra decoration.