This is a great product. I had it on my last lens. So when I purchased my new lens, I bought a new Pinlock Evo lens insert. They work great and are easy to install. The first one I bought I ruined it by thinking I needed to clean both sides before installing. Don’t do that. I ruined it and made it so it was no longer clear like glass. This was no fault of the product but self inflicted. I ended up ordering 2 more and installing them per the install instructions and had no issues on them. Would highly recommend them for your helmet and visor.