It is made of latex. You can use helium, an air pump, or water to inflate the balloon. When using these harmonious party balloons, you can create a warm atmosphere and make you and your family feel happy. This ballons are always a good item for decoration for any occasions, wedding, party, events, proposal, bridal shower, baby shower, trade show, openings and more. The price(without ballon stick) included shipping cost to ca. Thanks for your inquiry.