Dishwasher-safe: No
Cleanup check: I washed the tumblers by hand, then positioned the dishwasher-Harmless styles (which ended up all of them) in the best rack on the dishwasher to view how they fared.
Ceramic mugs https://denisalph414349.ageeksblog.com/28441760/the-best-side-of-customizable-insulated-tumblers-for-travel