The TILUCK 20oz Insulated Tumbler Stainless Steel Double Wall is a stylish and functional drinkware option suitable for adults. With a unique mermaid/fish scale pattern, this tumbler can keep beverages hot for 6 hours and cold for 12 hours. Made of durable stainless steel, it features a slide lock lid for easy access. Ideal for use with hot or cold drinks, this tumbler is perfect for on-the-go enjoyment and can add a touch of personal style to your daily routine. Hand wash only to maintain its quality.