Fold and seal DIY invitation has 2 rectangle and 2 triangle flaps to close. No glue or tape needed to assemble this card. Use a flat card to print the invitation details on and stick on the inside of the fold and seal card. The fold and seal 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.