Easy Clip on Flip up Sunglasses with UV400 Polycarbonate Polarized Yellow Lenses Plus Microfiber Cloth polycarbonate frame glass lens polarized Squeeze to open clip to fit nearly all types of glasses Super Lightweight (only 6-7g) , never damage the frame or the lenses of the spectacles Conveniently flip up or down at any angles with only one hand Feature UV400 Lens Technology, absorbing 100% of harmful UVA and UVB rays 60mm Lenth for one Len x 36mm Height (2.4"x 1.4"), Whole Lenth:131mm (5.2")