[Product Information]

Keeps drinks ice-cold (below 40F or 4C) for more than 6 hrs IF used in a THERMOS and pre-chilled drinks from the fridge are poured into the thermos. NOT designed for use in plastic bottles with water (use ice cubes for that). Does NOT fit in 16 or 20 oz soda bottles, bottled water bottles, or diffuser water bottles (not enough space when diffuser is in bottle). NOT for cooling down drinks which are room-temperature.
Best for juice, milk, smoothies, ice-tea/coffee or any drink you want to keep ice-cold in a thermos but do not want diluted with thawing ice cubes.
Many uses - keep kids milk ice-cold in thermos for school lunch; cold pack for bumps and bruises; reusable ice cube when travelling in foreign countries; use if local water has too much iron or other minerals that cause diluting ice cubes to give drinks a terrible taste.
White plastic is Medical Grade #2 HDPE, the best plastic for food (meets International and FDA Food Grade standards). Pure distilled water inside. No BPA, phthalates, or other harmful substances No color or dyes added to plastic.
Easy to wash. Top rack dishwasher safe or simply rinse off. Place Ice Pack in freezer overnight before use. Slim round design. Convenient and durable. Does not retain flavors. More convenient than reusable ice cubes or ice tube tray.