Feature: 1. The mouthpiece is made of food‑grade organic silicone, which is non‑toxic and tasteless, and is safer to use, can carry to take plane. 2. With up pressure relief valve, easy to operate, just press the up to release the gas in the bottle. 3. Waterproof luminous pressure gauge, stylish and beautiful, suitable for use in dark environments. 4. Help you breathe freely underwater, this is a practical and reliable diving equipment, with inflator for easy use. 5. 1L capacity oxygen tank is more convenient, it is easy for beginners to dive, and the underwater breathing time can up to 15‑25 minutes. 6. Use scenes include beach snorkeling, outdoor underwater exploration, scuba diving standby, fire survival. Specification: Item Type: Diving Oxygen Tank Set Material: Aluminum Alloy + Stainless Steel + Silicone Oxygen Tank Size: Approx. 260x90mm/10.2x3.5in Oxygen Tank and Breathing Connection Weight: Approx. 2.05kg/72.3oz (delivered without gas) Capacity: 1000ml Use Time: 15-25 minutes Inflation Method: High-pressure air cylinder, manual air pump, scuba adapter. Package List: 1 x 1L Oxygen Tank (Without Gas)1 x Breathing Connection Tube1 x Scuba Adapter 1 x Diving Glasses1 x Strap1 x Hand Bag 3 x Accessory Bag 1 x Handle 1 x Inflating Pump 1 x Outlet Pipe+Oil Water Filter1 x Wrench2 x Manual Note: 1. The maximum inflation pressure of this product is 3000PSi/25MPa/200bar, please do not exceed 30% of the above pressure when inflating.2. This product is suitable for use within 10 meters underwater. Novices recommend using it within 5 meters of water depth. It can be used as a spare cylinder for professional diving and the depth is less than 30 meters.3. After using in water, you need to rinse the joints with clean water to prevent corrosion of internal parts and aging of the rubber ring.4. Storage method to avoid direct sunlight.5. If the product is leaking, the leaking part can be detected in the water, and the sealing rubber ring can be disassembled and replaced.