1Quantitative Extrusion: Quantitative extrusion, accurate quantitative, will not produce too much waste. It is suitable for ordinary oyster bottles with outer diameter of 2832mm / 13in.2Manufacturing Material: Made of high quality food grade PP and PE materials, environmental protection, reusable, safe and healthy, and can be used for a long time.3Adjustable Hose Length: The length of the hose can be cut freely according to the height of the bottle, can be cut according to their own preferences.4Applicable Circumstances: You can choose straws according to your own needs, short ones can be cut, works with most sauce bottles with adapters. Fit for bottled cooking wine, oyster sauce, tomato sauce, vinegar, etc.5Easy to Use: Easy to use and fine workmanship. Without any difficult requirements even though you use it for the first time. Compact size and doesn't take up too much space.