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Trifocal 7X28 Plastic CR-39 Lenses are light weight, impact resistant and can be easily tinted.
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Trifocal 7X28 Plastic Polarized Lenses are light weight, impact resistant and the ultimate in protection, comfort and performance in the sun.
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Trifocal 7X28 Plastic Transitions Lenses are light weight variable tint lenses that darken on exposure to bright sunlight.
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