These balloons have an automatic sealing valve. They can be filled with air so they can be fixed to the wall or can be filled with helium so that they float. Bluey and Bingo are in the festive spirit wearing a red Santa hat making them perfect for Christmas celebrations and parties. These balloons would also make a great decoration for your children's party over the festive season. Please note that these balloons will come flat and not inflated, you must inflate these balloons yourself. They measure approximately 32 inches (81cm) each. Perfect for any Bluey and Bingo fans this Christmas time!