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Muscle Group： Side Abdominal Muscles, Rectus Abdominis Muscle
Product Features：- Strengthen the abdominal muscles, can reduce the lesions of waist or lower back , improve the performance on the movement.
- Strengthen lateral abdominal muscles and lower back muscles, can improve the body shape and muscle flexibility.
- Strong lateral abdominal muscles and vertical muscles can improve the performance of exercise, increase the flexibility of the lower back.
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