Illuminated Trial Lens Set

* 32 Pairs Each cx and cc Spherical (0.25 to 4.00 in 0.25 Steps, 0.25 to 4.00 in 0.25 Steps, 7.00 to 14.00 in 1.00 Steps, 16.00 to 20.00 in 2.00 Steps). * 20.00 Pairs Each cx and cc Cylinder (0.25 to 3.50 in 0.25 Steps, 4.00 to 6.00 in 0.50 Steps). * Prisms 1/2.1, 2, 3, 4, 5, 6, 8, 10, 12. * Accessories : Maddox rod, Stenopaic slit, Red glass, Prinhole 2 blank discs, Green glass