The Saro children’s thermal bottle is designed for use by the youngest members of the household, maintaining the temperature of the liquid for a period of approximately 12 hours. With its practical straw, it’s perfect for school! Made of double-walled 304 stainless steel with an inner vacuum chamber that prevents temperature loss. Excellent quality making it very durable and virtually unbreakable. Hand wash. Do not wash with abrasive products. Do not wash in dishwasher. Not suitable for microwave. Not suitable for oven.