Question about Next Level Racing GT Seat Add-on for Wheel Stand

The following products are compatible:
- Wheel Stand DD/2.0
- Next Level Racing Motion Platform Products
- Next Level Racing Free Standing Single Monitor Stand
- Next Level Racing Free Standing Triple Monitor Stand
- Next Level Racing F-GT/GTtrack Combat Flight Pack
- Next Level Racing Free Standing Keyboard and Mouse Stand
- Next Level Racing Floor Mat
- Next Level Racing Castor Wheels