Black anodised aluminium housing with a clever sprung release system.
There is a front face plate (56mm dia.) with three M6 threads on a 45mm PCD to which you can bolt your own simple adapter plate to mount your particular steering wheel.
The 25mm A/F, plated steel, hollow, hexagonal shaft adapter (I.D. 19mm) is welded to the top of your steering column.
This snaps and locks into the hub. To release the adapter, just squeeze together the two hub flanges.
QUICK RELEASE STEERING WHEEL BOSS KIT #QRSW