A massage device includes a pair of bars, each having plural adjustment holes and plural positioning grooves located on the opposite side of the adjustment holes. A pair of massage balls are connected via connectors to arbitrary adjustment holes of the bars. A strap has each of its two free ends inserted into an end hole at a head end of one bar and extending out of a lateral hole adjacent to the end hole. Each free end of the strap that extends out of the lateral hole of one bar is connected with a hook. Each hook is hooked to the desired positioning groove of one bar to adjust the distance between the bars. The positions of the massage balls on the bars are also adjustable. Thus, the massage device is suitable for massaging different parts of the human body in a do-it-yourself manner and features effortlessness and effectiveness.
