Stainless-steel frame and acetate temple tips. Two-tone model with the main structure in gold with a gloss finish and tortoiseshell temple tips with a glossy effect.Ophthalmic lenses with the optical seal of guarantee of Grupo Prats, designed, manufactured and assembled for perfect vision in any situation.Refractive index 1.5 ,1.6 and 1.67, depending on the prescription.Aspheric lenses.Organic ophthalmic monofocal lenses.Available treatments: anti-scratch, anti-dust ,anti-reflective, blue-blocking and prescription sun (for some of these, an additional cost applies)Size: Front 138 mm; Interior Diameter 54 mm; Bridge 16 mm; High 41 mm; Temples 140 mm.Includes: Box, blue hard case and microfibre cloth.