The four-spring rectangle chest-expander has the function of the existing chest-expander with single spring ends connecting handles, and besides, has the functions of bending elbows and drawing chest.
它除了有现有的单簧两端连接把手的臂力器的使用功能外，也能做屈肘、收胸的运动。
2
We have here the race apparatus, stationary bike, muscle builder set, chestexpander, bar bell, dumb bell and so on.