I'm sure you all have figured out the salt/pepper thing by now, but just to chime in anyway - finding grinders with ceramic mechanisms is hard; they're usually only found in mixed sets of salt and pepper grinders. Standalone grinders are almost always pepper/metal.
If anything this item maybe should have been labeled as a SALT grinder since it is really more of a salt grinder that can do pepper than a pepper grinder that can do salt. Plus it'd catch more eyes that way since, again, standalone ceramic grinders are harder to find. I almost didn't stop and investigate myself, glad I did!
That said, in for 3, gonna make a S&P set for mom and a kitchen pepper grinder for me (already have S&P grinders on the table). Word.