Rock Gym is a 6 in 1 machine which changes your midsection and focuses on your lower abs, upper abdomen, oblique, back, shoulder, thighs, arms and legs.Unlike normal machines Rock Gym provides an extended range of motion over 180 degrees, which enables a much tighter core and helps you bend and exercise more efficiently and with ease.Rock Gym has 200 % more effective muscle activity compared to regular machines or regular floor abs exercises.

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