Great for Christmas. Approximate size is 10" x 17". Mylar. It's kind of hard to see in the picture, but it does say "Merry Christmas" on the balloon.
Just stuff it with your gift; seal it with a household iron; insert the straw that is included and blow until full, and it seals when you remove the straw. Instant stuffed balloon gift for a wonderful surprise. Add some confetti prior to sealing it if you wish, and when they pop the balloon - instant party.