PREMIUM MATERIAL: E-far coffee mug is constructed of high quality metal and coated in thick enamel, Lead and Cadmium-free, Nonbreakable and rust resistance for a long lasting present, Healthy and durable for daily use EXQUISITE CRAFT – Complete curled lip for a better touch when drinking, Smooth finish inside and outside which does not coffee stain for easy cleanup, Solid U-Handle with ergonomic design for secure and comfortable grip PERMANENT DOUBLE SIDED PRINT – Each mug has the unique graphics printed on both sides that are vibrant, fade resistant and permanent, Mix match of colors of this set with vintage style which will brighten your every new day