Giantex Ergonomic Kneeling Chair, Rocking Posture Chair with Padded Cushion[Ergonomic Design]: The ergonomic knee chair promotes a more natural sitting position that may align your back, shoulders, and neck to alleviate strain. Therefore, your work and study sessions will become healthier and more productive. [Comfortable Cushion]: Settle into the luxurious feel of the knee chair with a 4" thick kneeling cushion. In addition, the kneeling office chair is filled with high density sponge and wrapped with skin friendly,