? Made of Top Quality Material: This 600ml double-walled, vacuum-sealed coffee mug is made from high-quality 18/8 304 food-grade stainless steel. The lid is made of BPA-free plastic which is durable and food-safe. The tumbler is Lead-free and durable, rust-proof, easy to wash, and unbreakable. ? Longer Insulation Time: The SHAMMARI coffee mug’s double-walled vacuum insulation can keep beverages hot or cold for up to 12 hours. It is perfect for the office, travel, camping, and parties. The thermos' nice wide mouth allows for easy filling, pouring, and cleaning. Whether you're camping or working in the office, your travel coffee mug will always provide a fresh, clean taste that won't retain or transfer flavors. ? Sweatpoof and Press-in Lid: Our tumblers have a superior colorful powder coating appearance, are sweatproof, easy to grip, and have advanced technology that prevents heat transfer to the outer wall. It has a drinking hole on the top, with a splash-proof sliding cover. Kindly note that this cup is to keep drinks contained and prevent heat/cold from escaping. It is not leakproof. ? Great for Multiple Occasions: Travel vacuum bottles are ideal for drinking juice, tea, or coffee at home, at the office, on road trips, camping and traveling, hiking, sporting events, and picnics. The insulated tumbler's simple and stylish design makes it ideal for business and family gifts. ? Easy to Clean: Our coffee and fruit juice bottles are simple to clean, either by hand with mild soap and water or in the dishwasher (top rack). You don't have to be concerned about sabotaging your morning or afternoon tea.