Ice blue No astigmatism pupil distance less than 65 65 Grey Mercury No Astigmatism Pupil Distance Less Than 65 Blue Mercury No Astigmatism Pupil Distance Less Than 65 Astigmatism 50 Degrees -20 Than -20 Astigmatism -20
The lenses are suitable for the degree:
400 degrees within 400 degrees-650 degrees Celsius