Keep it simple and to the point with the Butterfly Thank You Wood Folding Card by Spitfire Girl. This 4" x 5.5" card has an illustration of a group of butterflies with the text "Thank You!" in green text along the top of the card. The card is constructed of sustainably harvested and eco-friendly birch wood and comes with a blank interior to mark up with anything from a pen, marker, pencil or anything else your heart desires. It comes complete with an envelope to deliver the card.