Polarized and UV400 Protection Lenses - Anti glare from road, water and glass wall cause by sunlight reflection, capable of blocking 100% of harmful UVA and UVB radiation, provides you clear and comfortable vision while protecting your eyes against long term UV damage. Sturdy And Easy To Use - The spring loaded flip up shade is easy to wear, just need to clip over you existing glasses, youll get an brand new polarized function sunglasses. The clip is tight and strong ensures it won't fall off from the glasses frame, also with soft silicone material, itll protects eyeglasses from scratches, prevents problems from occurring when wearing glasses and ensures a comfortable experience. Classic Multiple Color Options - It has varies of colors can be choose from, these polarized sunglasses clip can be worn with various styles of clothes, meet your different needs. Though, the polarization of yellow lens might not as strong as the other colors, its more for the night activities, except that, the other lenses are more suitable for working under the strong sunlight, it is polarized for those more sunnier and dazzled activities. Stylish And Practical - These clip-on lenses are suitable for both prescription glasses and non prescription glasses. Large Frame can ensure them able to fit for most sizes of glasses frames. Its suitable for driving, fishing, golf, climbing, trekking, sports or any other kinds of outdoor activities. And the lens can be flipped up when you dont need to use it. They are only 8.6 grams, super light and you will hardly feel them on your face when wearing them.