Feature: 1. Diving Vest: There is a pocket on the left and right sides of the diving vest. You can use it to carry heavy objects or carry diving tools. 2. Breathing Oxygen Cylinder: Choose aviation aluminum, the surface adopts plastic spraying process, high pressure gas storage, durable and resistant to seawater corrosion. 3. Pressure Gauge: With luminous function, it is still clearly visible at 80m/262.5ft underwater, stainless steel material is waterproof, corrosion resistant, high hardness, and durable under pressure. 4. Breathing Mouthpiece: Made of food grade silicone material, safe and odorless. Ergonomically designed to easily bite and breathe. When connecting with the breathing valve, it must be tightened to prevent air leakage. 5. DS‑2000 Mini Scuba: Equipped with 2L cylinder, which can be underwater for 25‑40 minutes, and is equipped with breathing tube. When you need to dive deep, use the air in the cylinder and breathe the air above the water surface when snorkeling. 6. Pleasant Diving Experience: With diving oxygen tank, inexperienced people can dive and feel the charm of the sea. Lightweight and more comfortable, no cumbersome equipment, diving free breathing equipment to provide you with better diving experience. Specification: Item Type: 2L Oxygen Tank Diving Equipment Weight: Approx.6500g/229.3oz Oxygen Cylinder Specifications: 2L Storage: Rinse with Clean Water After Use Inflation Safety Pressure: 3000PSI/200BAR/20MPA Material: Stainless Steel + Silicone + Brass + Aluminum Alloy Oxygen Cylinder Size: Height: Approx. 34cm/13.4in, Diameter: Approx. 11cm/4.3in Carrying Method: Only Need to Disassemble the Bottle Body and Pressure Reducing Valve After Depressurization Can Be Carried on the Plane Available Time: 25-40 Minutes (Depending on Vital Capacity and Diving Skills) Applicable People: Professional Diving (Alternative Gas Source), Amateur Diving Enthusiasts, Lifeguards and Firefighters. Package List: 1 x Diving Respirator Kit1 x 2L Oxygen Cylinder1 x Meter Tube Adapter1 x Diving Vest Bag1 x Diving Goggles1 x Manual1 x Handbag Note: 1. According to diving industry standards, the safe working pressure of diving cylinders cannot exceed 20mpa (20mpa=200bar=3000psi).2. Before carrying on the plane, please separate the breathing valve from the bottle body. You need to press the top to release the pressure before the bottle body is separated. 3.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.