Key features: Frame made of cellulose acetate. Butterfly frame. Rim in gold finish. 7-point metal hinge. Origin: Germany. Offers great resistance to handling. Lenses Include: Lenses prepared, cut, and hand-checked in our workshop. Category 1 lenses: protect against glare in cloudy conditions or indoors. Protect 100% against UVA and UVB. Non-customizable lenses.