As at the other forum:
Buy one that is big enough to hold a disassembled pistol. I have one from Harbor Freight that easily holds any of my semi autos and most of my revolvers.
The jewelry cleaners work the same way but tend to be smaller.
PS The suggestion to look at the Kendall machines via Amazon is a good one.
"Only hunting and mountain climbing are sports. The rest are just games." - R.Ruark
NRA Life Member