Folks, this is a simple device to hard mount the Thrustmaster T150 and TMX wheel bases. Thrustmaster designed these wheels to be clamp-on only. Under use the clamp works its way loose during racing. This adapter solves this problem. The adapter simply bolts to the bottom of the wheel base in the same place the clamp mounts to it and give you hard mount points to attach to. These hard mount points are located in the same spot as the ones for the other Thrustmaster wheels. Bottom line, this is a simple solution to a simple problem.