My wife gave me the chair in January for my birthday. The construction was not an issue. In March, the problems were going on, the gas cylinder was repeatedly gradually sank down, no matter what height war.Kontakt set email the seller has successfully ignored! And now, after 9 months tearing the "alleged" leather on the seat although the chair wurde.Der always treated with a leather care product is a chair riesieges Windei and not worth the money !!!!