1. Balloons: Balloons are the main elements of balloon rain, so you need to buy enough balloons as needed. The price of balloons varies according to the quality and specifications, and the bigger and more complicated balloons will cost more.
2. Balloon production and layout: If you need to customize special balloons or arrange balloons at specific locations, you need to pay for balloon production and layout.
3. Service fee: Some commercial activities or wedding companies will provide balloon rain service, and related service fees need to be paid.