1, the glass capacity varies from person to person, that is, different people and different living habits can choose glasses with different capacities.

2. Under normal circumstances, you can choose about 300 ml, which is relatively light and effortless. No, if it is a women's group, you can choose 500 ml, which is full of water. In addition, if you are engaged in work for a long time, we can bring a liter of capacity, which can increase the water output and make it more convenient to use.