This back support is perfect for the car, home and office. The ideal sitting posture is one that continually changes. Thumper Flexor Pro makes sitting a dynamic activity allowing frequent posture change. Static backrests simply cannot provide this advantage. Thumper Flexor Pro back supports enhance proper posture. Thumper Flexor Pro is patented and is the only back support that allows for height variability (vertical variance) in the curve -lordosis- of the lumbar spine.
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