2 Pairs Polarized Lenses Replacement Red & Black Mirror for Oakley Crankshaft Sunglasses 2 Pairs of lenses replacements - red mirror coatings & black mirror coatings Precison cut and guaranteed to fit with the original Oakley Crankshaft frame extremely seamless Water, sweat, oil and dust resistant Reduces glare and enhances contrast perfectly Optional mirror coatings optimize usable light for specific enviroment and activities