[Product Features]: 1. The material is aluminum film, the sphere has metallic luster, the color is uniform, and the spherical shape is beautiful 2. It can be used repeatedly, it is convenient to inflate and deflate, don't throw it away after using it once! 3. After the inflation is completed, pinch the ball mouth flat, and the glue that comes with the ball mouth will automatically seal! [Product Specifications] (Due to different measurement methods, there will be errors in size, please refer to the actual product [Special Tips]: Since aluminum film balloons are not contractible, inflating aluminum film balloons must be slow. You can inflate to 90% with an inflator, and then inflate slowly to avoid breaking. If you encounter two layers of aluminum film sticking, you must stop inflation, gently pull the two layers of aluminum film apart and inflate with your hands, otherwise it will be easily damaged.