Weather Balloon 1500 gOur 1500 g weather balloon is a workhorse that will transport your payload higher than any other 1500 g balloon. Although it is more expensive than the Chinese and Indian weather balloons, its quality is far superior. This enables you to achieve higher altitudes with a smaller weather balloon, less helium, and less overall cost. If you are not satisfied with your 1500 g balloons performance, we will send you another 1500 g weather balloon at no