Wunderlich - Turn Signal Adaptor (Set) for BMW K 1200 RThe adapter allows for the installation of the most common accessory turn signal, which is fastened using a threaded screw, to the original BMW turn signal attachment. The adapters are milled on the interior such that the securing nut of the turn signal can be seated without a problem. The adapter is then attached to the original attachment point along with the turn signal. The facts: Milled from solid block material High quality aluminium Anodised