The Prince Mug Design Belongs to the Hot Muggs WIld Focus Lion Collection and Specially made for boys. Ideal for everyday use.A stainless steel tumbler is a type of drinkware made from a high-quality, food-grade stainless steel material.One of the key advantages of a stainless steel tumbler is its durability. Stainless steel is a tough material that is resistant to rust, corrosion, and other forms of damage, making it ideal for use in a variety of settings. Whether you're using it at home, in the office, or on the go, a stainless steel tumbler can withstand regular use and last for years.Stainless steel tumblers are also easy to clean and maintain, and are often dishwasher-safe. They are a great choice for anyone looking for a durable and reliable drinkware option that can be used in a variety of settings, and that will keep their beverages at the ideal temperature for longer periods of time.