bed home ergonomic waist support seat cushions dormitory long sitting chair for sitting posture correction student memory foam integrated cushion artifact

standard ☆ popular gray [use within 60.00kg]] standard ☆ sports blue [used within 60.00kg]] upgraded ☆ mysterious black [used within 65.00kg]] upgraded ☆ temperament gray [used within 65.00kg]] upgraded ☆ prussian blue [used within 65.00kg]] extra large ☆ xingyao black [used within 110.00kg]] extra large ☆ sapphire blue [used within 110.00kg]] extra large ☆ screen gray [used within 110.00kg]]

universal