xDrive Premium 4 Class Office &

Gaming Seat Shock Absorber Long Life Compatible with All Seats Standard Size Standard Height Dismantling and Installation Videos are available on our xDrive Youtube Channel.

Quality Class : 4 Class Material : Heat Treated Metal Approval : International SGS / BIFMA Approved Note: Since the metals of 4 Class Shock Absorbers are produced by heat treatment, they are 3 times more durable than 3 Class Shock Absorbers.

With 4 Class Shock Absorber, you can distinguish 3 Class Shock Absorber from the color of the Upper Thin Metal of the Shock Absorber. If the Upper Metal is Chrome, it is 3 Class and if it is Black, it is 4 Class.