Was / am thrilled how tiring it can be to work here (cough ... pc gaming). Good support the spine. The strong spring is also designed for "over 75kg man" when activating the rocker function. Chair allows a higher seating position than many other office chair and is designed for large people (180cm and more) suitable.
Shifting weight to the front or back leads me to sound on the connecting seat / rod. (Yes ok the user weighs more than 75kg) = - 1 star The plastic parts of the office chair invite to electrically and then to Staubmagnet (Is there where we iron also wash / fold) = -1 star