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Science Musuem Strength Ball

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Science Musuem Strength Ball

Give your muscles a revolutionary workout

Using hand rotation, spin the internal gyro and challenge yourself and others to achieve the highest revolutions per minute.Pull the red cord to spin the gyroscope inside the ball. Rotating the ball in your hands increases the rotation of the gyroscope. The digital counter measures the speed of the gyroscope and displays the number of revolutions per minute (RPM)

Contents & Features:

Gyroscopic exercise ball, Built in rev counter, Shows RPM/Highest RPM achieved

RPM achieved 0-60 seconds, Pull string, 10 years

£10.56

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