On the subject of assembly instructions I have to give my speakers right - bad. In addition, the bottom cover of the hub was in my office chair broken. After approximately 4 weeks, passed the first pulley - break between role and Einsteckdorn. The chair was picked up after a complaint by DHL, which also turned out to be difficult because the gas pressure spring is no longer detached from the hub and read seat base. So shipping in two packages. The office chair was replaced - with this the first part is now, after 6 weeks also broken. Furthermore, squeaks and creaks the substructure that can be a fear and worry. This chair is also going back now.
