This is call an Envelope Card and it uses very little paper. The base is 4 X 5-1/4" which saves paper when cutting from a 12 X12" sheet! The tip of the triangular flap TUCKS under the strip below. SO SIMPLE & UNIQUE!
The flap is a 3-3/4" square, scored diagonally. The flap opens to reveal your message!
This back view shows the square flap. This GORGEOUS paper is Painted With Love Specialty Designer Series Paper #145580 - OH SO SPLASHY!! The stamps and dies are the Sure Do Love You Bundle #145965 wood or #145966 clear.
Be sure to dimensionalized (elevate) the strip so you are able to TUCK the tip of the flap 1/4" under. TRY this FUN FOLD!!