VIVITORY Adjustable Hydraulic Power Twister Arm Forearm Exerciser 22-440lbs Home Chest Expander for Arm, Biceps, Abdomen, Shoulder and Chest Muscle Strength Training (Red)
【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…