N01001-Protective Mailer (Small) 5 5/8" long x 5"wide x 7/16" deep, weight approximately 1.5 oz with card, cost for mailing in the USA via USPSfirst class mail $1.30. This is a nice sturdy cardboard mailer for those special handmade cards. With the price of greeting cards today, you can make your own; buy a mailer and postage for less than the price of one card in the store. We also include stickers to put on the outside of the mailer that say "Quilled greeting Card Please do not crush". The Sticker even has a picture of a quilled flower on it. Watch out card companies!!!