Size: 1000ml features: 500 ml capacitykeeps your beverages hot or cold for 24 hourssturdy steel flask with a unique flip lid100% rust free steel and leak resistantfabricated inside and outside in 18/8 quality stainless steelthe classic MILTON Thermosteel flask is a vacuum insulated flask with inner and outer steel. It is designed to keep your beverages hot or cold for 24 hours. It has a unique flip lid that makes pouring completely hassle free and spill free for you. The lid of this flask also serves as a cup for drinking.