Bell ClickRelease helmet shields feature Bell's Nutrafog II anti-fog, anti-scratch, and UV-protective coating to give your peepers exceptional eye protection while riding. They're compatible with Bell Star, Vortex, RS-1, and Revolver helmets, and are offered in a selection of color options to suit your sense of style. f you just want to change up the look of your helmet, or you need to replace an older shield for clearer vision, do it with Bell ClickRelease helmet shields.