ERGOUP 2022 Premium Class Ergonomic Chair - BUTTERFLY

Product Functions Paddle Shift Wire Control System -- The paddle under right armrest can adjust seat height within 8cm-- The paddle under left armrest can adjust backrest tilt lock within 56 degree under 15 locked positions  Automatic Sitting Posture Adapting System When backrest tilt is locked, the seating automatics sliding will create 23 degree to adapt different person’s sitting posture, and user will stop at the most comfortable position without operation. First-class Sync-sliding Structure Sync-sliding structure is to provide a rational structure, the backrest tilt will drive the chair seat sliding forward., the user will be much safer. Product Functions  Headrest Headrest height, headrest surface rotation, headrest frame forward and backward Back Tilting By the paddle on the left side of arm15 locks within 75 degree Back Tilting Tension Rotating the knob under right side of seat Seat Sliding Tension Rotating the knob under the seat Seat Height By the pad