Helium cylinder filled with helium can be filled with 10-inch garden balls, 20 balls, 30, 50, 100 balls and 18-inch aluminum film balls floating in the air

The nitrogen-filled insurance cylinder improves travel safety and is suitable for daily outdoor travel. it has a variety of different functional modes to meet different needs and can effectively improve outdoor driving safety. the bottle is equipped with a gas guide system, which can effectively reduce oxygen consumption. the helium-filled bottle lasts a long time and effectively reduces oxygen consumption.