High temperature baked glossy enamel firmly bonds to tin plated substrate, resisting daily scratches and regular hand washing. The lively solid yellow tone stands out among neutral toned enamel mugs for retail shelf display. 310ml moderate capacity balances portability and drinking volume, well adapted for short distance travel and home kitchen use. Reinforced silver metal rim improves anti chip performance against bumps. Blank unprinted surface allows custom logo and pattern imprinting, fit for travel souvenir goods, retail home goods assortment and custom brand giveaway projects.