tiny potentiometers -- what are they called?

hi all,
i am looking for tiny potentiometers. the ones typically used for volume control in walkmen, discmen etc.
something like this:


what are they called?
best,
jacob

Googling "micro potentiometer" turned up a few resultsTry the following link

Trimmer / Trim Pot maybe?

Thumbwheel potentiometer is the usual term.

great!
thanks for the help :wink: