Economically priced to fit your budget Wrap-around fit to provide excellent field of vision Lightweight one-piece polycarbonate lens Provide 99.9% UVA and UVB protection Anti-scratch coating 12 per box, 300 per caseGENERAL SPECIFICATION:Lens Base: 10 Curve Overall Length (Lens-Tip): 155mm Overall Width (Hinge-Hinge): 140mm Weight: 24gm COMPONENT MATERIAL FEATURES Lens Polycarbonate 10 curve lens, wrap around design Side shield Polycarbonate Integral to lens Nose pad Polycarbonate Universal, integral to lens Temple Polycarbonate Thin flexible Hinge Polycarbonate 5 barrel type, integral to frame/temple Screw Stainless Steel Standard hinge screw