GL Minus Individual Sphere Trial Lens Metal Ring

GL Minus Individual Sphere Trial Lens Metal Ring: Optional None - 0.12" - 0.25" - 0.37" - 0.50" - 0.75" - 1.00" - 1.25" - 1.50" - 1.75" - 2.00" - 2.25" - 2.50" - 2.75" - 3.00" - 3.25" - 3.50" - 3.75" - 4.00" - 4.25" - 4.50" - 4.75" - 5.00" - 5.25" - 5.50" - 5.75" - 6.00" - 6.50" - 7.00" - 7.50" - 8.00" - 8.50" - 9.00" - 9.50" - 10.00" - 11.00" - 12.00" - 13.00" - 14.00" - 15.00" - 16.00" - 18.00" - 20.00"