The big mug of the Steel Collection. A clean cylinder, a sculptural vertical handle and a finish polished to a mirror, sized for a full mug of tea or a long coffee you intend to finish. Double-walled 304 steel keeps the drink at temperature and the body comfortable to hold. It is balanced rather than heavy, and it will outlast every ceramic mug in the cupboard. Details Capacity: 350 ml / 11.8 fl oz Material: 304 stainless steel, double-walled, BPA-free and lead-free Finish: mirror polish, vertical handle Care Dishwasher safe; hand washing preserves the mirror longest For a smaller cup with a saucer, see the Luna Mirror Cup. Stainless steel is finished by hand. Faint polishing marks or slight tonal variation can appear on the surface and are part of the material, not a defect.