In use it does not have by the hand, it offers the shoulder back section massage vessel which it is easy to use. The shoulder back section massage vessel includes support structure. Aforementioned support structure distribution heavily includes the section and the massage section. The aforementioned distribution heavily the section and the aforementioned massage section, in order to put on the cartridge shoulder, are arranged on front and back both sides of the cartridge shoulder. The aforementioned massage section has had the massage device. The aforementioned distribution heavily the section distribution heavily has had the body. The aforementioned distribution heavily the body is used in order equilibrium to do the aforementioned massage device.
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