GJSHOP Power Twister Bar | Upper Body Strength Training Workout for Arm Builder 20Kg Hand Grip/Fitness Grip  (Black)

To use a power twister, you grip each end of the bar and twist it in opposite directions, against the resistance of the springs. The amount of resistance can be adjusted by using a power twister with a different strength rating. it's important to use proper form and not overdo it with the resistance, as overexertion can lead to muscle strains and other injuries. Power twisters can be used for a variety of exercises, including chest presses, flyes, and arm curls. They are a convenient and portable option for working out at home or on the go, and can be used by people of all fitness levels.