Tepemccu Hydraulic Power Twister Adjustable Arm-Exerciser – Home Chest Expander 22-440lbs, Home Fitness Equipment Bar…

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【Patented Hydraulic Design】: Are you still using the traditional spring power twister that put you in potential danger? Time to throw away now! Tepemccu hydraulic power twister got patented hydraulic design which prevents the sudden spring backwards like other traditional arm device dose and it can softly return to position which makes this very safe to use.
【Wide Range of Adjustable Resistance】:To meet with all needs whether you are a novice or veteran and make sure this arm exerciser serve you for your entire fitness career, we made this fitness equipment adjustable from 22-440lbs with 2-20 levels. Just easily rotate the knobs, you can choose the level which suits you the best.
【Stable resistance strength】:  Unlike the spring chest crusher devices that will break or power weakening after many repetitions, this device features on fully enclosed hydraulic cylinder that provides you with a stable resistance strength that will not weaken with the pass of time!
【Golden Ratio Triangle Structure】: Specially designed golden ratio triangle structure for this power twister always keep device in a stable state, ensure safety of using. The opening angle of arms will not change neither the motion track will although you change the resistance, thus, you will work out most muscles without having to change arm movement during exercise.
【Durable & High-quality】This chest expander device is very durable which has successfully passed 100000 endurance tests. We use double carbon steel to make sure it won’t easily be deformed or broken. The higher quality PU handle will give you more comfort grip. Perfect for athletes, gymnastics, boxing and people for bodybuilding.