Very thin vinyl on the sides of the chair back. I rocked back and hit the printer tray and tore the chair open. Just a light hit. Printer tray is fine. Chair wounded. Cheapy thin vinyl used on the side. I’m sure you could tear it with a finger nail.
The holes for the arms were not properly lined up to put together had to use other tools thank goodness I had them or I would not have been able to complete the project.