Adjustable Power Twister High Performance Spring Expander for Strength Training of Arm and Chest Muscles

PERFECT EXERCISE AID - This adjustable chest expander is perfect to train your wrists, arms, shoulders, chest and back, develop your grip, strengthen your fingers and wrists, and increase upper body muscle strengthSafety design: the sturdy triangle design makes the movement more stable. There are non-slip rubber handles and safety ropes on both sides. The double spring construction makes the spring force more uniform and does not deform during operationEasy resistance adjustment: turn the button left or right to increase or decrease the resistance, which can meet different training intensity requirementsDurable material: durable two-layer steel tube material, no deformation after prolonged useEasy storage: after finishing the exercise, turn the adjustment knob to the minimum level and lock the handle with the buckle. The locked strength training device takes up little space