The Stanley 40 oz Stainless Steel H2.0 Flow State Quencher Tumbler is a thermal tumbler designed to keep drinks cold or hot for extended periods of time. It has a 40-ounce capacity (approximately 1.18 liters) and is made of stainless steel, making it durable and corrosion-resistant. The H2.0 flow design helps control the liquid flow to prevent spills, and the lid is leak-proof for added convenience. This tumbler is ideal for carrying drinks while traveling, camping, or engaging in outdoor activities.