This listing is for a set of 10 mini envelopes with the option to purchase card inserts. These envelopes are great for mini note cards, advice cards, best wishes jars, party favors, jewelry packaging and more! Details: -Listing is for a set of 10 envelopes with the option to purchase cards. --3 envelope styles are available at checkout (see last photo). ---Euro Flap (3.5" x 2.5") ---Square (3" x 3") ---Pocket (3.5" x 2.25") -The Euro style is best for a standard gift card. -Flat cards are available at checkout. -Envelopes are not self-sealing or mail-able