The Milton Thermosteel 500 ml Flip Lid Flask is a high-quality stainless steel flask designed to keep your beverages hot or cold for up to 24 hours. It features double-wall vacuum insulation with an inner copper coating, enhancing temperature retention. The flask's flip lid design allows for easy pouring and doubles as a drinking cup, providing added convenience. Its sleek silver finish and compact size make it suitable for daily use, whether at the office, gym, or while traveling.