1. PREMIUM MATERIALS: Made of premium aviation aluminum, stainless steel, silicone and other materials to ensure safety and reliability, suitable for professional divers. Users can rest assured to use the gear for underwater activities and enjoy the fun of diving. 2. MINI : The has a capacity of 0.5 liters, which can be used to supply water for underwater breathing for 5‑10 minutes. In addition, the is equipped with a three layer filtration device, which effectively prevents dust and impurities from entering and ensures that the gas inhaled by the diver is cleaner. 3. AIR PUMP DESIGN: The pump is uniquely designed and easy to operate, which can provide stable breathing guarantee and facilitate divers to breathe underwater, increasing the safety and convenience of diving. 4. COMPLETE: The diving set is fully equipped, including a , a breathing valve, a pump, a pressure gauge, an oil water separator and so on. In addition to that it comes with a bag for easy storage and carrying. Spec: Material: Aviation Aluminum, Stainless Steel, Silicone Capacity: 0.5L Package List: 1 x Diving 1 x Breathing Valve 1 x Storage Bag 1 x Strap 1 x Hand Rope 1 x Wrench 1 x Activated Carbon 1 x Pressure Gauge 1 x Screwdriver 2 x Rubber Ring 1 x Oil Water Separator 1 x Air Pump 1 x Air Pump Handle 1 x Instruction Manual 1 Pack x Accessories (24 Parts)