| 摘要 |
Disclosed is a musical instrument finger pressure exercise disk comprising an elastic main body disk (10). A surface of the main body disk (10) is provided with an annular first dam portion (12), second dam portion (13) and third dam portion (14) which are arranged from inside to outside successively. The central axis of the second dam portion (13) and the central axis of the third dam portion (14) coincide with the central axis of the first dam portion (12). An annular middle ring groove (16) is formed between an outer side face of the first dam portion (12) and an inner side face of the second dam portion (13). An annular external ring groove (17) is formed between an outer side face of the second dam portion (13) and an inner side face of the third dam portion (14). A plurality of finger holes (20) matching the fingertips of people are respectively provided in the middle ring groove (16) and the external ring groove (17). |
