... mechanism, convenient to control the height and incline ,the back and seat can tilting available at the same ... mesh chairModel numberHX5006DimensionsW60*D66*H98.5cmPackage1PCS/1CTN(back and seat,armrest one package, base one package)Carton ... Adjustmentrock ,Tilt, Tilt-Lock, and up and down Control and swivel MechanismSeat height adjustment and locking/tiltingFeaturescolorful flexible rotation in modern ...