I purchased The Wyatt set of Dark Pink Himalayan Salt, 6.52 oz, reusable grinder and Black Peppercorns, 2.99 oz., reusable grinder. The salt grinder no longer works after just 3 months of use. The small round disc that surrounds the grinding knob came off and can't be easily reinserted. It will not snap back into position, and the grinder no longer grinds. Very unhappy with this grinder, although the Wyatt Black Peppercorn works fine.