ERGONOMIC HEATED OFFICE CHAIR: NOBLEMOOD executive office chairs keep you away from sedentary fatigue. The backrest can be locked at comfortable angles from 90 degrees to 135 degrees and you can chose a suitable height (from 19.8” to 23”) to have a good posture during long time work 6 POINTS VIBRATION AND 8 MODES: 4 vibrating points in the back and 2 vibrating points in the seat, it is convenient to get the remote control from side pocket and adjust the mode or intensity freely. The PU leather office chair with heating function is really a cosy design while you work in the cold winter THICKENED CUSHION WITH INNERSPRING: 24D rebound sponge combines with innerspring, this desk chair has 4.7 inches cushion and give you the biggest comfort. Under the cushion, there is a expandable footrest for having a great relaxation in a break 360°SWIVEL STABLE METAL BASE: This high quality office computer chair is equipped with 360°smooth rolling wheels, heavy duty metal gas lift base, ensures you fast and silently move while working. The load-bearing capacity is up to 350 lbs NOBLEMOOD ergonomic office chair comes with instructions, only needs 15-20 minutes to assembly. No difficult to have an assembled office chair Massage Office Chair