This part is designed for the Thrustmaster TS-PC Racer wheel base but should be compatible also with other bases.

To mount it, you'll need to use additional metal washers between the screw and the base to adjust the distance according to the thickness of your desk.

Total thickness of metal washers is 13 mm.

You should also add some rubber elements/pads on the round pad to prevent the entire assembly from sliding on the surface.

Hope it will be useful!