Pop your long neck into your Chill Me multi cooler to keep it refreshingly cold at your next BBQ or use the twist on lid and it converts to a 350 ml cup - perfect for hot or cold drinks. Attach the twist-on ring to keep bottles and cans cool & secure. Attach the clear lid to use as a cup. Keeps beverage cold for up to 24 hours. Keeps beverage hot for 4+ hours.