Hefei ergonomic chair can choose Takada ergonomic chair, which has many adjustable functions, including headrest height, headrest angle, headrest surface rotation, backrest inclination, backrest inclination tension, backrest height, waist cushion height, chair seat height, chair seat depth, chair seat sliding tension, armrest height, armrest surface angle, intelligent sitting posture adaptation, synchronous sliding, and many other adjustable functions. I hope I can help you.