The product is made of high-strength plastics mixed with self-developed modified auxiliaries. The product color is gorgeous; Non-toxic and tasteless, in line with international environmental requirements. 2. The material is heat-resistant, and the ambient temperature range is -20 -- +100℃. Acid, alkali, salt, oil chemicals. You can place a liquid containing the above type. 3. The product is designed with a folding structure, which does not take up space when not in use. Features: the cylinder body can be adjusted and expanded at will; The position of the nozzle can be set at various angles. It's human. 4. Open and fold repeatedly, with a service life of more than 10,000 times. Five times a day for five years. 5. The product can bear 4 KG (KG). 6. Folding and usage: hold the upper and lower belt, pull it in the opposite direction, and open the cylinder; When not in use, a pressure from the mouth to the bottom, the tube is folded.