Specification: Brand DIDEEPMaterial Aluminum alloy + ABS + silicone Suit 1L oxygen tank Working temperature 10C (50F) Max inflated pressure 3000PSI / 200 Bar / 20 Mpa Featrues: Inflated pressure is not allowed to be more than 3000 psi/200 bar/20 M Pa. Filled 1L oxygen cylinder allows to stay underwater (no deeper than 10 meters) for about 15-20 minutes. Easy & quick inflated by high pressure pump, refilled by a large tank via adapter or filled by electric pump. Aluminum alloy air cylinder is corrosion resistant, & with a pouch for protection. Suitable for novice diver, amateur, water lifeguard & fisherman. Package included:1 x Oxygen Cylinder (With exhalation adaptervalve)1 x Pump Adapters 1 x 1L Storage bag 1 x Diving goggles