- What is the difference between T50 and T50 Air?
- What is the difference between T50 and T80?
- Is the headrest removable?
- How do I assemble the backrest and the seat pan?
- Even if I lock the tilt in the most upright position, it doesn't stop at 90 degrees. Is it defective?
- I want to fix the backrest at a certain angle. Do you have any suggestions?