Replaced an older pepper mill that died recently with this nice pair. Both are well made and the mechanisms so far work flawlessly (5 months old now). These get use almost every day for a variety of meals, and the grind used changes often. In quality, I'd say they are near professional in design. And they come with a lifetime warranty.The salt grinder has three grind settings, varying from pretty coarse to fine. The mechanism is ceramic in order to avoid any moisture in the salt from rusting out the grinding mechanism. Even then, C&M warns against using some high-moisture salts (such as some ocean or Himalayan ones), so beware of that, use good quality salt, and keep your salt sealed and dry between refills.The pepper mill has six grinding settings, from very fine to "looks like a chunk of pepper ball." The stainless steel mechanism works smoothly and easily, providing a small amount with each twist to allow for better placement and quantities on your food. We use this on everything from mashed potatoes to racks of ribs.Both of these devices do not hold a lot of salt or pepper, so you'll likely be refilling often depending upon your use; we use these a lot and refill about every two weeks or so. The tops of each pulls off to reveal the inside grinding gears and to allow for refilling. Once you've placed new salt or pepper in place, the top slides back on easily and doesn't fall off during use.My wife has arthritis problems in her hands, but these two mills aren't an issue at all for her due to the smoothness of the mechanisms.Overall, these have been an excellent addition to the kitchen.