B1539K Box Set of 12 Invite Frosty Unique Funny Blank Christmas Cards with Envelopes Cards' insides are blank. Set of 12 Humorous Christmas Greeting Cards with 12 matching envelopes. Fits in a 5" x 7" envelope. Some styles are available blank or with a greeting inside. Perfect Hilarious stationery for writing Christmas wishes and ships with envelopes in a reusable box for your convenience. North American based, our proprietary, eco-friendly, print-on-demand technology and premium, recycled, renewable cardstock drastically reduce waste and minimize environmental impact. Founded in 1980, NobleWorks  and The Best Card Company, its non-humor division  is an award-winning brand and a New Jersey based, family-owned publisher. A proud board member of the Greeting Card Association, we strive for 100% perfection and customer satisfaction  every card, every order, every time. We are here to serve whether you purchased our stationery directly from us or from authorized resellers.