Easy to install, you will no longer be irritated with sunglasses slipping down your nose. A Better Choice, A Loyal Protector for Your Sunglasses. CompatibilityFitting Clip-on mount styles include: Aviator RB3025 55mm, 62mm, Aviator RB3044 52mm, RB3362 59mm, RB8052 61mm, RB8054 59mm etc.