It's a 3D Shadow Box card. You can fold this flat and mail in a standard A2 envelope. (4.25 x 5.5) Very cool! It was a little hard to photograph, so I have 3 images posted, hoping to convey the dimension.
Stamp Set: Happy Heart Day
Cardstock: Pretty in Pink, Confetti
Ink: Black Staz-on, Regal Rose
Accessories: Watercolor Crayons and Aquapainter, Signo White Gel Pen, Key Tag Punch, Square Punch, Pink Gingham Ribbon, Black Brad, Dimensionals
Date: Tuesday, January 8, 2008 GMT Views: 1729