Anti-overflow Cup / Soft-Bottom Cup

When cup is filled with water, it is easy to overflow. In addition, some disabled, stumble or injured people cannot walk smoothly with cup full of water, and the hot water may overflow to scald them.In order to solve this problem, the bottom of the cup is changed to a kind of soft and elastic material combined with hard-material cup body, so as to increase the storage space of the whole cup. When the cup full of water picked up from the table, the bottom of elastic material will droop to increase the cup volume, and the water level will drop not to overflow.