| 摘要 |
A tri-point replaceable handheld massage device includes a main body, massage sections and neck sections. One end of each neck section is joined with each massage section via a dilated section for increasing mechanical strength between the neck sections and the massage sections. The other end of each neck section has a screw thread for screwing and fastening a plurality of neck sections joined with the massage sections into a plurality of screw openings. An end portion of each screw thread has a projecting section for increasing mechanical strength of assembled main body and neck sections to prevent breakage.
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