Contents : 32 pairs each cx and cc sph 20.00 pairs each cx and cccyl 0.25 to 4.00 in 0.25 steps 0.25 tp 3.50 in 0.25 steps 4.50 to 6.00 in 0.50 steps 4.00 to 6.00 in 0.50 steps 7.00 to 14.00 in 1.00 steps prisms 16.00 to 20.00 in 2.00 steps 1/2.1,2,3,4,5,6,8,10,12 7 accessories : Maddox rod, stenopaic slit. Prinhole 2 blank discs, red glass, green glass.