1, dia. 63mm, 2, borosilicate material 3, Led lens 1, Size details : dia.: 63mm, middle thickness: 23.6mm, edge thickness: 3.3mm, edge width: 2mm, Parabolic diameter: 59mm2, Material: borosilicate , K9L are available;3, Function: Headlights on full beam Aspherical Lens