OPTICAL-QUALITY, CORROSION- AND BEND-RESISTANT,NICKEL SILVER, METAL ALLOY FRAME WITH RIM LOCKSFOR PRESCRIPTION LENSES. HYDROPHILIC, ANTI-SLIP,ADJUSTABLE NOSE PADS. OPTICALLY-CORRECT, SHATTERPROOF, POLYCARBONATE LENS. HEAVY-DUTY, LONG-LIFE BARREL HINGES. SOME STYLES HAVE SPRING HINGES THAT FEATURE A STAINLESS STEEL CORE AND NICKEL SILVER SHELL. HYDROPHILIC, ANTI-SLIP, TEMPLE TIPS.
