Areszon Adjustable Hydraulic Power Twister Arm Exerciser 22-440lbs Home Chest Expander Muscle Shoulder Training Fitness Equipment Arm Enhanced Exercise Strengthener Grip Bar Abdominal Builder

Warm Tips: The buckle are just for holding the two arms of power twister together, please don't use it as a handle, avoid the buckle falling off and power twister falling on you! Please choose the intensity that suits you so as to avoid muscle strain! Not recommended for use by children, pregnant women and those who feel unwell! Please keep out of reach of children and pets to avoid hurting your baby!   Research shows it is very dangerous to use spring power twister, hydraulic power twister is safer and more durable because of the patented hydraulic adjustment system principle.   What’s Spring Based Exercisers Disadvantage? Spring back is violent, easy to hurt you and the spring in the middle will easily pinch you self. The spring is prone to break after prolonged use and the resistance strength will weaken overtime. The opening angle of the arms and motion track will change if you adjust the resistance, you have to change your arm movements what your muscles are already used to! The exercise effect will be greatly reduced because your arm can’t fully open when you use spring power twister!   What's Hydraulic Arm Exerciser Advantages？ Won’t rebound and hurt yourself and there is no danger of the spring breaking. Totally-enclosed hydraulic cylinder which offers you stable resistance strength, will not weaken over time! With unique safe hydraulic adjustment system principle, even if you change the resistance, the opening angle of the arms and arm movements won’t change, so you don't need to change arm movements. You can fully open your arm even you reduce the resistance.   Are you still using inefficient and dangerous fitness equipment? Please throw away those spring power twister, try our hydraulic power twister!