These Christmas balloons are made of high-quality aluminum foil, easy to inflate and seal, reusable and not easy to break The Large Christmas Tree balloon can be easily filled with air . Thanks to a self-closing valve, the foil balloon can also be inflated by a drinking straw or hand pump. A filling of 80% to 90% is enough, please do not overfill the balloon so that it will not burst. Unique Design: These balloons are designed with a cute Christmas Tree shape, bright colors, and vivid effects, making your party more beautiful and moving. And easy to use. Our balloon is very cute and interesting, Unique Christmas Tree balloon can add more pleasant atmosphere to your party or gathering.