Vivitory Adjustable Hydraulic Power Twister Arm Forearm Exerciser 22-440lbs Home Chest Expander for Arm, Biceps, Abdomen…

.Are you still using inefficient and dangerous fitness equipment? You should choose a safer and more effective arm fitness equipment for yourself!
What are the advantages of our generation power?
1.Will not violently rebound and hurt ourselves!
2.Don’t need to worry about the spring will break!
3.The fully enclosed hydraulic cylinder provides you with a stable resistance strength that will not weaken with the passage of time!
4.Can be adjust to different resistance to meet your needs.
5.Adopt unique safe hydraulic adjustment system principle, even if the resistance is changed, the arm opening angle and arm movement will not change, so there is no need to change the arm movement.
6.Fully open arms even with reduced resistance.

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【Adjustable Resistance】The resistance strength of this power twister can be adjusted by rotating the knob,the range is:22-440lbs,2-20 levels.You don’t need to buy new ones when your strength level increases,it applies to any stage of arm strength training enthusiasts.Easily turn the knob left or right,increase or decrease the resistance to meet your needs in different training stages,accompany your entire fitness career.But please choose the intensity that suits you so as to avoid muscle strain
【Reliable Quality】The structure of the entire arm exerciser is made of high-density carbon steel, sturdy and durable, also with non-slip grips on both sides. Each power twister will undergo multiple tests to ensure stability and durability, and to maximize your safety and product life.
【Double Carbon Steel】Our hydraulic arm exerciser is made of high-density double carbon steel,engineering plastics and hydraulic cylinder,which passed 100000 endurance tests,won’t easily be deformed and broken!Ergonomically designed PU handle provides you with a more comfortable grip.Special anti-slip texture design protects against accidental falling off,not only offes you with a safer fitness experience,but also offers good wear resistance for maximum longevity!
【Safety & Stability】The unique golden ratio triangle support will always keep the power twister in a stable state to ensure the safety for using. As a fitness equipment chest expander, it is more competent than others.
【Totally-enclosed Hydraulic Cylinder】Unlike other spring based exercisers,our power twister adopts 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 doesn’t change,the motion track also doesn’t change,so you don’t need to change arm movements,and what’s more,you can fully open your arm even you reduce the resistance!