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?【Adjustable Resistance】An upgraded fourth-generation hydraulic power twister that can adjust different resistances by turning the resistance button, which is more user-friendly than traditional spring arm strength devices. You don’t have to worry about twisting, because exercise is a gradual process, which is very suitable for those who are just beginning to use it, men, women, and children, etc. The movement track is stable and safer than the traditional one.
?【Hydraulic Pressure Protection】Research shows it is very dangerous to use spring power twister,because its springback is violent,easy to hurt you;the spring in the middle will easily pinch youself;the spring is prone to break after prolonged use.Please throw away those spring power twister,try our hydraulic power twister which is safer and more durable becasue of the patented hydraulic adjustment system principle.There is no danger of the spring breaking,won’t rebound and hurt yourself!