These travel mugs are sure to catch attention, not only are they unique but incredible beautiful as well. Each mug is made on the potter's wheel, the lid is attached on the wheel. Mugs come with silicone sleeve or a handle and a cork which seals the mug to keep your favourite beverage hot longer. Travel mugs are dishwasher safe, I put the mug and leave the sleeve on right in the dishwasher, I put the cork in the utensil tray. One of the best things about these mugs, is they don't get the nasty smell that regular travel mugs can get.