Peace be upon you. I swear to God, the office chair has not been with me for a full month, and the chair does not suffer from any problem. It is very, very, very comfortable and ergonomic because it has positions for the neck up, down, forward, and backward, as shown in the pictures. Also, the back is the same system, and the armrests go up and down and move left and right. Note: The price of the chair is over 950 SAR new, but by God, the sale is easy and urgent. The reason for selling is that I received an efomao chair as a gift, and as you can see, the chair is still in its original packaging. Urgent sale!!!!!