From Diff's website "Designer acetate black frames featuring stainless steel 5-barrel hinges and matte accents Polarized lens with 100% UVA/UVB Protection Premium scratch resistant Blue Flash CR39 Lenses Signature travel case included Lens 54mm Width x 48mm Height Frame 141mm Width; 19mm Bridge; 136mm Temple Length" *note imperfections on anatomical left outer lense. not visible when wearing glasses*