EyKuver Grey film is a convenient, portable, and cost-effective way to protect your eyes from the sun’s damaging UV rays. The protective film adheres to the front of your prescription lens without chemical adhesives. EyKuvers are a great replacement for cheap sunglasses and high-dollar prescription sunglasses. It’s as easy as Peel, Stick, and Enjoy! To apply, simply peel each individual tinted film away from its packaging and place it on your clean prescription lens. When it’s time take EyKuvers off your glasses, peel back a corner of the film and remove. Size Recommendations: The width of your lenses determines the EyKuver size, Medium or Large. You will find sizing information stamped on the temple or bridge of your glasses. For lens width 50 and under we recommend Medium, for lenses 50 and above we recommend Large. If you prefer trimming to fit the lenses, go with the Large size. In the product images above is an image showing the EyKuver film dimensions.