Universal Diving System: Whether it's scuba diving or underwater diving, you can handle it easily. Perfect for diving enthusiasts of all levels Premium Material: The diving tank is constructed from ultra-strong aviation aluminum, which is waterproof and corrosion-resistant Easy for Underwater Breathing: Take your diving adventures to the next level with this scuba tank that can allow you to breathe underwater for about 5-10 minutes without pressure (depending on vital capacity) Pressure Gauge: Equipped with a pressure gauge to monitor the oxygen level in real time Great for Underwater Activities: Whether snorkeling along vibrant coral reefs or conducting shallow dives in tranquil lagoons, it will provide users with the flexibility to immerse themselves in different aquatic environments Specifications: Material: 6061 aviation aluminum Maximum working pressure: 20MPA/200BAR/3000PSI Capacity: 0.5L Depth of use: entertainment air source within 10 meters, backup air source within 30 meters Duration of use: 5~10 minutes (depending on the diving depth and personal breathing rhythm skills) Inflation method: electric air pump/scuba adapter/high-pressure air pump Details of use: The pressure of the oxygen cylinder cannot exceed 20 MPa (that is, 200BAR or 3000PSI displayed on the pressure gauge). Before boarding the plane, please separate the breathing valve from the bottle body. You need to press the top to release the pressure first, and then separate the bottle body