1, the cup with suction nozzle is for the convenience of consumers, so the lid is usually a button flip that can be opened or a flip that can be opened with one hand, and a few are threaded screw lids.

2. The button flip and flip are designed to allow consumers to quickly and conveniently open the water cup in any occasion, such as mountain climbing, yoga, driving, cycling, running, live broadcast and so on. For the screw cap suction nozzle cup, the suction nozzle was added later. If you don't need a suction nozzle, you can take it down without affecting the functional use of the whole cup.