A multifunctional water cup cuff comprising: a fastening device (1), which on the front side has a sliding feedthrough (10) and a locking part (11), over which a button (12) is arranged, which enables the fastening or releasing of the locking part (11 ) controlled, with a fastening clip (13) and a U-shaped spring metal plate (14) being arranged on the back of the fastening device (1); anda water cup (2) which is arranged on the fastening device (1) and has a protruding ring (21) for fastening on one side.
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