Premium Material: It is constructed from ultra-strong aviation aluminum with a waterproof, corrosion-resistant exterior. perfect for family trips and underwater parties Lightweight and Durable: Take your diving adventures to the next level with this 0.5L diving tank kit that can allow you to continuously dive for 5-10 minutes (depending on vital capacity), providing you with an uninterrupted underwater breathing system Silicone Mouthpiece: It is built specifically for the diving enthusiast. The lightweight and comfortable diving tank is equipped with a food-grade silicone mouthpiece for safety and health Pressure Gauge: The mini scuba tank is equipped with a pressure gauge to monitor the oxygen level in real time Universal Diving System: Whether it's scuba diving or underwater diving, you can handle it easily. Perfect for diving enthusiasts of all levels 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 Note: The pressure of the oxygen cylinder cannot exceed 20MPa (that is, 200BAR or 3000PSI displayed on the pressure gauge) Before boarding, please separate the breathing valve from the bottle body. You need to press the top to release the pressure before separating the bottle body.