Review on Vucchini Salt and Black Pepper Grinder Set: Refillable Mills with Bamboo Lid and Wood Stand - Premium Sea Salt Grinder Shakers (black and white) by Reza Cook

I really like this set. It is adjustable and can grind the salt very finely if desired (which I do). I've found that you have to hold it fully upright when sanding, otherwise the product will pool in the ring at the top and suddenly fall into a concentrated heap when you turn it completely upside down - but that's fine if you're trying to also dropping it into a measuring spoon. You just have to be aware. Quality materials (I prefer glass over plastic and bamboo is sustainable).