’29 Mr Blobby Character Shaped Foil Balloon. This comic not has a automatic shut-off valve. The balloon must be broke out and is possible, twist the neck of the balloon and tying or use a heat sealer or a bag sealer to seal the balloon. The balloon will come flat, you must inflate this balloon yourself. The balloon measures 18 inches across. This comic is ideal for a big fan of Mr Blobby., or could be used as a fun and a great decoration to your children’s birthday party.