ZABBYS TRIAL LENS SET Z-TRIALSET

Trail Lens Set (Illuminated) is made of high quality lens with a group portability of lens. It contains Plano-convex, plano-concave, bi-convex and bi-conclave. These Trial Lens Sets are used to check the effective power of eye and give an exact report for judging the eye sight.
Contents
32 Pairs Each cx and cc sph        0.25 to 4.00 in 0.25 Steps        4.50 to 6.00 in 0.50 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 cyl        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 Pinhole  2 blank discs   Green glass