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According to the body center of gravity theory, the new design right and left sides and concave posterior uplift cushion shaped structure, so that when seated to the pelvis will not produce skew deviation, better to maintain a complete sense of stability. Use both sides of uplift cushion part, pressure from the outside to the inside of the power to keep the inside of the hip center of gravity, so that real hip-up and flexible, it is natural to shape small but hip. 9cm tall rear seat hump, with shock-absorbing characteristics of decompression, can support and relieve pressure on hips sacrum, and then to the back straight and extend naturally get rid of bad habits hunched, so that you can to keep back straight and correct the sitting, to avoid long-term posture problems, back pain caused trouble. Learn More