Perfect material: environmentally friendly non-toxic PC food grade plastic, heat resistant, impact resistant, not easily deformed, good toughness and easy to clean. Controllable water volume: The plastic water bottle knob type faucet design can control the amount of water flowing out. 11cm caliber: The large diameter design of the water container makes it easy and labor-saving to clean the inside, and the water injection is fast and smooth. Applicable space: light water tank, save space, easy to carry, sturdy and durable; suitable for agricultural, industrial, garden, car, outdoor camping, outing, fishing and other storage drinking water!It can also be used in schools, hotels, stations, offices, homes and other places.