| 摘要 |
PURPOSE: A portable multifunctional exercise device is provided to enable a user to conveniently train muscle in home or company. CONSTITUTION: A portable multifunctional exercise device comprises a cylinder(110), a piston(120), and an operation member(130). The cylinder having a pair of insertion holes is arranged in a chamber and both ends of the chamber. The piston comprises a piston head arranged inside the chamber, a piston rod which is slide-combined with the insertion hole, and a moving hole. The operation member is combined with each piston rod. The cover covers the cylinder and piston.
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