What Is The Advantages ?
1.We have patent cylinder, Durable, Safe , Effective, Which more, It is almost mute during working.
2.Although different reisistance , Move distance is the same , Making the arm exercise more effective.
3.Compare With Spring Twist , Cylinder Power Twist Which Strength Of The Rebound is relatively small, making the exercise more safety
4.Adjustable range:ã€22-440lbs】

An upgraded version of the arm of a multi-purpose, 20-levels strength adjustment, according to their own training schedule to adjust.
Tips for use:
After use, arm twister is in open position,Adjust to line leastresistance of 2-level.Keep to be closed.
Rotate the Switch from 2-level(22lbs) to 20-level(440lbs) this will let you adjust the resistance which match your ability.
It is gradual change of resistance not # level represents #kg.
Because of cylinder design , It need to use some effort to change the resistance levels.With two hands would be easy.