ST-9160 17mm x 6-POINT &ldquo;CONVEX ("FLOWER HEAD")&rdquo; MERCEDES LUG NUT IMPACT SOCKET 17mm x 6-POINT CONVEX ("FLOWER HEAD") MERCEDES LUG NUT IMPACT SOCKET Socket is 85mm long with protective plastic sleeve to prevent scratching of wheels. Special 1/2" drive 17mm wheel bolt impact socket for safe and effective removal of the Convex ("flower head") lug bolts on late Mercedes models. ONE BUSINESS DAY SHIPPING