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Muscle Group： Deltoid,Latissimus Dorsi, Triceps
Product Features：- The muscle lines of shoulder will be more clear by exercising shoulder and upper back .
- Improve muscle of the deltoid more symmetrically.
- Enhance the strength of the shoulder, shape the perfect shoulder muscle group, further prevent and reduce recovery of the lesion of cervical and shoulder , and the protection of the cervical spine.
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