Perimeter lenses, 68 lenses, full aperture, with shiny metal rims, in carrying case Contents: 28 pairs of spheres (plus and minus): 0,25 to 3,00 in 0,25 Dpt. steps 3,50 to 7,00 in 0,5 Dpt. steps 8,00 to 14,00 in 1 Dpt. steps 1 x 16 Dpt. 12 pcs. Cylinder: -0,25 to -1,00 in 0,25 Dpt. steps -1,50 to -5,00 in 0,5 Dpt. steps