Adjustable Twister Arm Exerciser, 22-440lbs Hydraulic Power

Double-Layer carbon steel tube Made of high-density double carbon steel, firm and durable, won't easily be deformed and broken! PU soft rubber handle Ergonomically designed PU handle provides you with a more comfortable grip.Special anti-slip texture design protects against accidental falling off. Buckle for easily store The buckle of the handle's bottom is easy to store and convenient to carry. Hydraulic Pressure Protection Hydraulic power twister which is safer and more durable because of the patented hydraulic adjustment system principle. Our hydraulic power twister which is safer and more durable. There is no danger of the spring breaking, will not rebound and hurt yourself! Say goodbye to your old spring power twister! The spring power twister's spring back is violent, it's dangers to use. The spring in the middle will easily pinch yourself The spring is prone to break after prolonged use. Adjustabl