If you want a second enlarger Meopta OPEMUS III, you want the complete kit with case and diffuser insert. Very old school, Federal Stow A Way JR. Has a 2 element lens with waterhouse stops, diffusion, uses a clear glass bulb, I have one that I use for some 6X6 and ^X9 negatives that I want to enlarge soft, I use a LED bulb, does not do well with 35mm, without condenser way to slow, but you could use a higher Lum LED bulb, and it comes with a case. Pain to use, no counterbalance. Made from stamps parts, mine fit well, no light leaks.