| 摘要 |
A device that helps a golfer improve his/her swing while at the same time exercising the muscles used during the swing. The device comprises two grips or handles, one at each end, and a flexible center body between the grips. The flexible center body comprises an outer body made of a multiple directional flex material such as a spring and an inner body made of a flexible strip of stainless steel or a durable strip material, or a combination of both which enables the device to bend or flex in two directions and resist a twisting motion.
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