Aluminum housing and stem.
Convex lens.

■ available colour: chrome, carbon, anodizing black satin…
■ available glass: blue lens, chrome lens, aluminum lens.
■ available stem: BON arm stem, MX arm stem, RING III arm stem,
HB arm stem, TM arm stem.
■ available screw:
　 M10, M8 regular or reverse and 5/16".