You cut a piece of paper 4 inches wide x 12 inches long. Fold sides in about 1/4 inch ( just thick enough for a tape runner to run across). Fold one side up about 2/3 of the way . Cut flap into triangle shape. Then tape sides together. Cut one more piece of paper 1/4 inch wide and 12 inches long. This is what you use for the strap to secure the flap. Only tape flap on the back of the envelope as the front has to be loose in order to put the flap in. And its done. A personalized way to give a gift card.