The finest rear view mirror you can buy! Mirror head and mirror arm must be ordered separately. Mirror heads are black or stainless and come in either 5" or 6" diameters. Mirror heads are weighted so they don't vibrate. Mirror arms are available in powder coated black or brass. Or chrome for 26-7 only. Arms attach to windshield hinges on early years, 23-27 attaches to screw that holds lower windshield in place. Arms are available in 6" or 8" versions for 1909-25, only 8" for 1926-27. 1926 and 1927 arms come with a new longer stud to replace your existing lower windshield pivot stud. All will work on right or left except 1913 and 1914. For those two years, there are right and left hand arms available.USA