A slight design change recommended.I turned the black lid upside down to use it as a guide to refill the black peppercorns - *remove or fill-in the lip on the inside of the black cover because this catches the black peppercorns. Rather close it in so the black pepper slides straight into the glass jar when re-filling! :)I would prefer all grinding parts to be stainless steel as I may be grinding the plastic into my food as well?? :(I have bought a second one because the internal plastic broke, making it unusable. Just to buy this part would be good OR even better make it stainless steel for the same price. :)

This is the fourth IHARDIG spice grinder I've purchased for myself. The first two I purchased 19 years ago for peppercorns and coarse salt. They still work beautifully, offering coarse to fine grinds. I replaced the pepper grinder today because the outer sleeve started to slip after so many years of being pulled off and on to refill. Our fourth was added to grind dried red pepper flakes. These are also a favorite gift to give!

I am a gourmet chef who has tried many other grinders and nothing comes close if you like your pepper course ground. If you follow cleaning and maintenance recommendations these will last for years. I’m replacing a prior purchase which eventually broke from daily use after several years. These have a wide mouth for easy filling and are easily adjusted from fine to course. The adjustment indicator is the only thin in need of improvement. I will definitely buy these again.