PVC & Polycarbonate
Nose pads made from plastic material called "PVC" (polyvinyl-choride) or Polycarbonate. These are alternatives to silicone in nos epads, PVC nose pads are slightly firmed than silicone with the advantage the material is nonporous, so PVC nose pads last longer and tend not to discolor. Polycarbonate nose pads are firm to hard thin and clear.
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Ultra-Thin Nose pads Clear PVC Screw-On Tear-Drop 12mm 10 Pairs #NP480
Tabco Optical
$10.95Ultra-Thin Nose pad Clear PVC - Screw-On Tear-Drop 12mm long and 8mm wide 10 pair bag thickness is about .050" / 1.25mm Special Mix-N-Match Premium Nose pads pricing per bag$10.95