Greatever Scuba Diving 0 5L Air Tank S4000PLUS Package A

[Portable Diving]:Equipment Constant pressure breathing is stable,lightweight and portable.
[Safety to use]: Food-grade silicone cigarette holder, to ensure safe and easier breathing. The diving cylinder adopts a safe low pressure and can be refilled for use. It is equipped with a filling adapter, so you can easily pump air into the bottle. This product has passed DOT certification and complies with international standards for diving equipment, please rest assured to use it.
[Pressure and corrosion resistance]: The entire aviation aluminum shell is made of aluminum alloy, which can better resist internal corrosion. The 0.5L mini diving cylinder is small, but very sturdy and can hold a lot of compressed gas.