DIY butterfly invitation card is a pre-cut card has 4 flaps in the shape of semi-circles that fold over each other to close. Use a flat card to print the invitation details on and stick on the inside of the butterfly card. The butterfly card is not printer compatible. Decorate with ribbon or lace or leave as is. Used for birthday invitations, baby shower invitations, bridal shower invitations, christenings, weddings and more.