1. First of all, there is compressed air in the fireworks discharge pipe and a simple valve on the pipe. Even if it is a paper tube with fireworks, the valve can be opened by rotating the fireworks discharge tube, and the high-pressure air will eject the fireworks.

2. Hand-twisted fireworks discharge tube has no gunpowder, which is safe and environmentally friendly. It is loved by many people and is relatively simple to place. Hold the bottom of the fireworks barrel and it will be ejected with a slight twist.

3. The common specifications of fireworks display tubes are 5 cm in diameter, 40 cm, 60 cm, 80 cm, 100 cm, and the contents are colored strips+sequins (flashing), colored strip petals, happy characters, love and other shapes. The outer packaging is generally gold and red.