Specifications BrandDIDEEPProduct Name1L Portable Scuba Diving TankMaterial6061 Aviation AluminumMaximum Working Pressure20MPA 200BAR 3000PSICapacity1LDuration10 20 MinutesColorBlack Yellow Features 1 The 1L oxygen cylinder allows the diver to stay 1 10 meters underwater for 10 20 minutes depending on individual lung capacity and depth of diving perfect for beginners 2 Supports 3 types of inflation Manual high pressure Inflatable pump refill adapter electric inflator 3 Uses 6061T6 aluminum material and meets the manufacturing standards for diving equipment 4 Comes with a pressure gauge to show how much air is in the diving tank 5 Fitted with an ergonomic silicone mouthpiece 6 Press and hold the top to vent the pressure inside the bottle 7 Lightweight and portable design it can be taken on board after twisting the breathing valve OPERATION INSTRUCTION 1 Ensure you have read and understand the User ManualSafety Guidelines before use 2 Do not exceed a max depth of 10M 3 Do not fill above 3000 PSI 200 BAR 4 Do not use under 1000 PSI 50 BAR red zone on pressure gauge 5 Inexperienced divers must only use under the supervision Package includes 1 x 1L Diving Cylinder1 x Backstrap1 x Diving Glasses1 x Adapter1 x Pump1 x Carrying Bag