... hingeLens:demo lensSize:52-17-135Model No.:POM4115Material:monel frame,stainless steel temples,acetate tips,with spring hingeLens:demo ... lensSize:52-17-138Model No.:POM4120Material:monel frame,copper temples,acetate tips,with spring hingeLens:demo lensSize ... :51-18-135Model No.:POM4121BMaterial:monel frame,acetate temples,with spring hingeLens:demo lensSize:50-17 ...