East Mount Twister Arm Exerciser - Adjustable 22-440Lbs Hydraulic Power, Home 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! ?Adjustable Resistance?Rotating the knob to easily adjust the resistance, rang 22-440 lbs free adjustment. Just rotating the knob, resistance can be adjusted, faster than car shifting. ?Durable Material?Double-layer steel tube is firm and durable. The material is strong and more realistic. The training machine has 440 lbs bearing capacity. ?Stable Triangle Structure?Stable triangle center design makes the exercise more stable, which is a safer and more scientific structure. ?Safe Fitness? Professional micro-rebound and refuse to take profiteering rebound. Completely solve the safety hazard for safe fitness with no hurt and safe micro-rebound. ?Easy Storage?The buckle of the handle's bottom is easy to store and convenient to carry. The user-friendly designed rear buckle can be fixed after folding. ?EAST MOUNT]?Design and produce fitness equipment for 12 years. EAST MOUNT strength equipment are designed with advice of professional coach, committed to meet your needs for diversified weight training.