... spring hingeLens:demo lensSize:55-18-137Model No.:PA-0103Material:aluminum frame,acetate temples,with spring hingeLens:demo lensSize:52- ... 18-137Model No.:PA-0106Material:aluminum frame,acetate tips,with spring hingeLens:demo lensSize:54- ... 18-135Model No.:PA-0108Material:aluminum frame,acetate tips,with spring hingeLens:demo lensSize:57- ...