Condition:100% Brand New AFTERMARKET PARTS,Material:Aluminum,CNC Machined from High Quality Aluminum,Anodized Surface Finish Perfect fit,no modification is needed, no install instructions included Thread:Left-Hand (Anticlockwise),Right-Hand (Clockwise) There are a few motorcycles that have one mirror that is Reversed, Left-Hand Threaded (LH, Counter-clockwise) and one mirror that is Standard, Right-Hand Threaded (RH, clockwise). Most motorcycles have both mirrors that are Standard, Right-Hand Threaded (RH, clockwise). Please verify your thread pattern and bolt size before purchasing or installing this product Product Description Install Note: There are Right-Hand Threaded and Left-Hand Threaded for mirror extension adapters.And the Bolts are Right-Hand (clockwise, standard)/p> Simply unscrew your current 10mm mirrors and mount the mirrors on the risers threaded hole. Then use bolt/washer to mount the Mirrors and Risers to the bike. Make your final adjustments; tighten the Ris