Black hilla optical glasses from Mykita featuring straight arms with curved tips, a hinged structure, oversized frames and an internal logo stamp. Imported Composition Acetate 100%,Metal (Other) 100% Product measurements for size: 52 Bridge width: 1.8 cm (0.7 in) Lens diameter: 5.2 cm (2 in) Total width: 14 cm (5.5 in) Arm length: 14.5 cm (5.7 in)