PC frame, Resin lens, polarized, Lens width: 50 millimeters, Lens height: 40 mm millimeters, HD polarized lens - UV400 protection coating, absorbing 100% harmful UVA/UVB rays. Clip-on polarized sunglasses are made of hd resin lens which can reduce glare and enhance contrast, improving visual clarity and reducing eye strain.The mirror coating helps to reduce glare for even greater visual comfort, deflects envious glances and gives you that unique look.