The Stanley 40 oz Stainless Steel H2.0 Flow State Quencher Tumbler in Frost/Electric Yellow is a durable and high-quality tumbler designed to keep your beverages at the perfect temperature. With a 40 oz capacity, it's perfect for holding large quantities of your favorite drinks. The stainless steel construction ensures long-lasting performance and easy cleaning. The H2.0 Flow State technology helps maintain the temperature of your drinks, keeping them hot or cold for extended periods.