Ergonomic chair, function description: headrest can be adjusted high and low, one-click line control chassis, synchronous tilt, non-stop locking, humanized back elastic adjustment, waist-back separation design, clad waist pillow, chair back can be adjusted high and low, seat cushions can be high and low and seat depth slide back and forth, 4D armrests can be high and low, armrest left and right rotation and front and rear sliding, static slide!
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