... Material:Brass/Zinc 2.180 degree,14mm diameter,35-60mm. 3.Lens: Glass/Plastic 4.Finishing:Various Door viewer/Peephole1.Diameter: ... Brass/Aluminium/ZincDiameter:12mm,14mm,16mm,26mmAngle:160 degree,180 degree,200 degreeFits door:20-35mm,35-50mm,35-60mm,50- ... :All plastic lenses,All fire rated glass lenses,Combination LensesVarious door viewer closes are availble. 180 degree Brass Door Viewer B-05