The Clip On Polarized Glasses Attachment is the perfect solution for anyone who wants to wear prescription glasses and at the same time have a clear view in the sun. With this attachment, you can easily turn your glasses into sunglasses without having to buy additional sunglasses. The attachment is easy to attach to most glasses and offers 100% UV protection as well as polarized lenses. Ideal for leisure activities and holidays. The attachments have a 100% UV protection factor of 400 and are polarized With the attachment you have a lens opacity up to class 3 and therefore these glasses are well suited for very strong sunlight and still approved in the STVO. Dimensions of these clipons/attachments: Height of the lenses: approx. 43mm Width of the lenses: approx. 57mm Width of the attachment: approx. 130mm