Zojirushi SM-TAE48SA is a stainless steel mug designed to keep beverages hot or cold for many hours. It features a vacuum insulation that prevents heat transfer, ensuring that your drinks stay at their desired temperature. The mug is made of durable stainless steel, which is resistant to rust and corrosion. It has a capacity of 480ml, making it suitable for both hot and cold drinks. The mug comes with a lid that has a safety lock to prevent accidental opening, and a stopper that allows you to drink without having to remove the lid. The lid set can be disassembled for easy cleaning.