11. Made of food-grade PC material. The water tank has no smell. Do not use BPA, fluorescent agents and other harmful substances to the human body. Safe and reliable. 22. Thick, sturdy, ergonomic design, unique rotating faucet design, freely adjustable water output, easy-to-use unique rotating faucet design, convenient life. The large-diameter bottle mouth and the bottom of the fingers can be extended by 10 cm to ensure the water quality for long-term use. 33. Easy to operate, the cup body is designed with a faucet switch, the leather case is completely redesigned, and updated, and multiple high-quality silicones sealing rings are adjusted. Its structural sturdiness can greatly improve the sealing performance. 44. The bucket is light, space-saving, convenient to carry, durable, suitable for camping in self-driving tours. Especially suitable for outdoor self-propelled drinks! At the same time, it can also be used in schools, hotels, stations, offices, homes, other places, especially outdoor places, construction sites, temporary activities, etc. 55. Suitable for various occasions. It can be used as standing in the car, barbecue or camping place, and can also be used as disaster prevention supplies in emergency situations. It can be used in schools, hotels, stations, offices, homes, and various places.