Wakeboard Tower Mirror arm bracket. The mirror arm bracket is cnc machined from Aluminium and then hand polished or glossy black coated. The bracket is shaped to curve off your front leg into a position above the driver. The bracket will fit a 2.5inch, 2.375inch, 2.25inch, 2inch, 1.875inch, 1.75inch tube. Adjusting the mirror. The mirror can adjust slightly left and right and also move up and down. So each driver can adjust it to their needs. Once you have had a mirror in you boat, you will love this piece of equipment forever.