These Lens Bars are not only great looking but allows you to make a quick refraction when used in conjunction with your Retinoscope.

SPECIFICATION: -

Content: Four Racks with a total of 28 lenses.

0.50, 1.00, 1.50, 2.00, 2.50, 3.00, 3.50, 4.00, 5.00, 6.00, 7.00, 8.00, 9.00, 12.00D