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 Volume: 0.5L Usage depth: entertainment air source within 10 meters, backup air source within 30 meters Usage time: 5~10 minutes (the specific time varies from person to person according to the diving depth and personal breathing rhythm skills) Net weight: 1.1kg Inflation method: electric air pump/scuba adapter/high-pressure air pump