TUSA TA0804 Anti-Fog Film for Scuba Diving & Snorkeling Masks - Single Lens (Large Size) - Prevent Fogging for Clear Underwater Vision

For Large Single Window Masks. Fits M1010, M1010S, M1001. Freedom Film will keep your favorite mask fog-free while diving underwater. Made with long-lasting durable material, Freedom Film can be installed easily, and is reusable with proper care.