Tennis balls and cans. Shawn Keith, certified personal trainer, recommends filling tennis balls and tennis cans with sand or change for some great handheld weights.
网球和罐子。职业私人教练肖凯什推荐将网球和网球罐装满沙子或者硬币，这非常有利于做些手握式的重量训练。
Shawn Keith, certified personal trainer, recommends filling tennis balls and tennis cans with sand or change for some great handheld weights.
职业私人教练肖凯什推荐将网球和网球罐装满沙子或者硬币，这非常有利于做些手握式的重量训练。
Shawn Keith, certified personal trainer, recommends filling tennis balls and tennis cans with sand or change for some great handheld weights.
职业私人教练肖凯什推荐将网球和网球罐装满沙子或者硬币，这非常有利于做些手握式的重量训练。
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