The portable Nuby RapidCool rapidly cools fresh formula feed from boiling to the ideal temperature in as little as 2 minutes, so you can make perfect ready-to-serve baby bottles anytime, anywhere!RapidCool Kit: Perfectly Cooled, Ready to Serve Baby Formula The RapidCool Kit contains 2 RapidCool flasks with digital lids. RapidCool follows NHS guidelines for safe baby bottle preparation, quick and quiet for night-time feeds with an easy-to-use touchscreen.Fill the insulated flask with freshly boiled water to prepare a bottle feed on the go. Use the 2 milk powder dispensers to pre-measure and store your formula. The travel-friendly RapidCool fits in changing bags for perfect formula feed, wherever you go.Making a Formula Feed has Never Been Easier: Pour freshly boiled water into your RapidCool using the measuring lines. Add your pre-measured formula powder, then attach the digital lid. It will display an amber light, showing the feed has not yet cooled.Shake the RapidCool, turning it upsi