The serial number label for seating is placed on the underside of the seat.
If you have difficulty locating the label, turn your chair over and closely inspect the bottom of the seat. The label may be caught under the control mechanism. It is also possible that if optional arms were installed, the label my be located under the arm bracket.
Once you have located the serial number label, your serial number is the alphanumeric code directly in the center of the bar code in large print. Directly below the serial number is your product's model number. The color of the product is located under the product model number.