Security door peephole 180 degree,12mm diameter,35-60mm.Glass lens or Plastic lens. Brass polished Finishing High quality Security door peephole1.Diameter:12mm2.Material:Brass3.Angle:160 degree4.Length:35-60mm5.Lens:Glass or Plastic. Fire rated glass lens available6.Finishing:BP,CP,SN,NB,AB,AC7.With or without closer.High quality and cheap price peephole Security door peephole