Occasion: Greetings Card, Pop-Up Card, Birthday Card Pop Ups 3D Greeting Cards by Second Nature Closed size (approx.): 170 x 120mm (6¾" x 4¾") Open size (approx.): 700 x 270mm (8½ x 10") A Miracle in Paper Engineering! Not just any card, this award winning Pop Up Greeting card jumps to life from its envelope! The design has a blank panel and a gift tag which can be used for a personal message. Just close the Pop Up flat and write your message in the panel/tag provided before placing in the envelope for mailing. Pop Ups are available in a wide variety of occasions, ranging from Weddings to 70th Birthdays and from general Birthdays to Anniversaries.