Abstract: A waist-twisting machine includes a main base, a rotating unit, an auxiliary base, and a hull unit. The main base has a first post, a fixing base, a power source, a gear unit and two press members. The rotating unit has a disc and a hoop deposited movably in the disc, which is rotated at its original location by two press members rotated by the gear unit driven by the power source. The hoop is moved by the disc in a circle of non-axial center with the disc, provided with numerous massage rollers in its inner surface so that a user entering the hoop may receive twisting action together with massage action synchronously, obtaining the effect of waist twisting and slimming at the same time.

Abstract: A waist-twisting machine includes a main base, a rotating unit, an auxiliary base, and a hull unit. The main base has a first post, a fixing base, a power source, a gear unit and two press members. The rotating unit has a disc and a hoop deposited movably in the disc, which is rotated at its original location by two press members rotated by the gear unit driven by the power source. The hoop is moved by the disc in a circle of non-axial center with the disc, provided with numerous massage rollers in its inner surface so that a user entering the hoop may receive twisting action together with massage action synchronously, obtaining the effect of waist twisting and slimming at the same time.

Abstract: A waist-twisting machine includes a post, a fixing base, a moving mechanism, a hoop body and a hull. The fixing base is movably combined with the post to move up and down, and the moving mechanism is deposited in the fixing base, consisting of a power source to rotate a gear unit, which then rotates two rotating arms connected with an interacting arm to make a horizontal movement in a circle as a hula hoop does. The hoop body is connected with the interactive arm to be moved in the same track as the interactive arm, with numerous massage rollers fixed on an inner surface of the hoop body. Then a user standing in the hoop body can be compelled to move together with the hoop body, with the waist thus twisted and massaged at the same time.

Abstract: A metal racket includes a shock removing member, a frame and a handle. The shock removing member has a fitting hole for a lower end of the frame having two shaft rods to fit through and into a hollow interior of the handle and fixed therein by rivets passing through rivet holes of the handle, the shock removing member and the shaft rods. Thus a shock reducing hollow space is formed between the lower end of the shock removing member and the lower end of the handle, When the racket receives shock in hitting a ball, the shock is firstly buffered by the shock removing member and then reduced by the shock reducing hollow space again.