Another practical Wunderlich idea. The hand guard extension very easily bolts on to the existing original hand guards. The benefit of this is that wind and water are channeled much better than before away from the rider's hands and arms. The shape reduces turbulence which has the added benefit of less cold air being sucked in from underneath- meaning fingers don't cool down as much. Made of silver colored plastic with paint-like finish. Sold as a set of left and right hand including all screws needed. Only fits original BMW hand guards.