28 ft / 336 inch 1000g Giant Professional Weather Balloon For Meteorological Investigation Aerial Video Holiday Party Decoration Entertainment Toys Huge Balloons

- Huge balloon, 1000g weight, expands to approximately 28ft/336 inch after inflation, perfect for making a statement at any event or gathering. - Lift off altitude can reach an impressive 31000m, making it suitable for meteorological investigations and aerial video capturing. - Natural color resembling white allows for customization - paint it any color you desire! Ideal for easy tracking during scientific experiments or entertainment purposes. - Versatile use: great for fairs, aerial photography, science projects, and grand openings. - Please note, these balloons require helium or hydrogen gas for inflation. Helium can be purchased locally, while hydrogen filling should be done in a laboratory (recommended for experts only, not for ordinary individuals). Ensure safety precautions are taken when handling hydrogen gas., Manufacturer: Hwoyee