[HIGH QUALITY MATERIALS]:The 40 oz. flat-bottomed mug features a vacuum double-wall design that ensures good heat retention. You can enjoy hot and cold drinks for a long time, keep your hot drinks hot for up to 12 hours and cold for 24 hours. [Dual Vacuum Insulation]: Keeps your Fav drinks hot for up to 12 hours and cold for up to 24 hours. Fill your cup with hot drinks and your hands won't get hot. [ STAINLESS STEEL INSULATED MUG ] This insulated coffee mug is made of 100% high quality professional grade 18/8 stainless steel with durable non-slip powder coating. It is easy to clean and leaves no odor. It is powder coated with a durable colorful striking finish that will not scratch, peel or fade. The entire mug is food grade safe and recyclable. [PERFECT AND UNIQUE GIFT IDEA] : Beautiful shape and color, a unique gift for yourself and your loved ones. Superior quality and stylish design, perfect gift for women, men, family, mom, dad, husband, wife, sister, friend, colleague, can be used as birthday gift, wedding gift, bridal shower gift, engagement gift, anniversary gift, mother's day gift, Christmas gift, thank you gift, housewarming gift Inner liner material: 304 stainless steel Housing material: 201 stainless steel Insulation performance: 6-12 hours Country of manufacture: China Package list: 1pcs The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom’s policies and EU Product Safety and Compliance laws.