The cups on sale just have lettering on the bottom, below pictures just DIY style ！！！ All aluminum anodized products, including cookware and eating utensils should be cleaned using a mild detergent and warm water.  The use of automatic dishwashers should be avoided because the dishwasher detergents are very high in alkalinity (Calgon pH 9.9; Electrasol and Finish pH 11). Strong alkaline solutions are used to strip anodic coatings and in time will permanently damage the anodized finish. (Plus, we're pretty sure that the pure badassery of Battle Mug will absolutely destroy your dishwasher!!!) 尺寸；20cm X 7.5cm 重量；840克 容量；610毫升