FEATURES AND BENEFITS TAC Polarized LENS: Multiple 9-layer Triacetate TAC lens technology offers impact-resistant, scratch-resistant and distortion free characteristics, making them great for biking, driving, golfing, fishing, boating, lounging by the pool and other outdoor recreation activities. Clip On Design - saving much trouble for those who have to wear prescription glasses or reading glasses. Polarized lens reduces visible glares effectively from water, snow, and pavement increasing visual acuity and decreasing eye strain, which makes these sunglasses great for driving, fishing, baseball and any other outdoor activities Fully UV Protection - Ultra lightweight and highly scratch resistant material lens with UV400 technology offers maximum protection from harmful light UV Rays (including UVA, UVB and UVC) Classic Rectangle Clip on Style - Rectangle style clip-on lenses are super light and fit most sunglasses, gives you a unique look. Measurements： -Lens width:60mm -Lens height:43mm