Bell ClickRelease Protint Face Shield Features: Enhance your vision, the ProTint shield reacts to UV light and adjust to optimum darkness to give you the best view at all times. ProTint photochromic lenses provide enhanced contrast, helping your eyes to discern shapes and colors more quickly The result is enhanced clarity and a reduction in eye strain through varying light conditions Compatible only with Bell ClickRelease shield system: Bell Rs-1 Bell Rs-2 Bell Vortex Bell Qualifier Bell Star helmets manufactured 2016 and older