Specification :

TRIAL LENS SET with Trial Frame: RTL-07
Reduced Aperture
260 Lens, Anodized Aluminium Rims

Contents:-
32 pairs each cx and cc sph 20 pairs each cx and cc cyl
0.25 to 4.00 in 0.25 steps 0.25 to 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 10 prisms
16.00 to 20.00 in 2.00 steps 1/2,1,2,3,4,5,6,8,10,12

Accessories: Maddox Rod, Stenopaic Slit, Pinhole 2 blank discs, Red Glass, Green Glass