SOFT RUBBER PROTECTS Soft rubber clip protects no easy to scratch the glasses when you wear it, which has a good protection for your glasses. EASY TO CLIP It's just need to open the clamp, and clip it on the sunglasses, then adjust a comfortable position you want. 180° RANDOM FILP UP 180 degree flip up design allows you to easily switch to flip up or put it down at any time when you are resting or shopping etc. Polarized and UV400 PROTECTION: √ Professional machine test. √ Block harmful light UV Rays. √ Reduce glares and reflections. √ You will see beautiful patterns on the card in polarized card test. Package Contents: 1x Pair of Polarized Clip-on Sunglasses 1x Glasses Case 1x Polarized Test Card 1x Cleaning Cloth To avoid damage, do not clean the glasses with napkin or clothing, and also avoid using detergents or soaps. Just use clean water and the Complimentary cleaning cloth to clean the glasses.