Skittles Singles to Go Tropical Punch! Transform your plain boring water into a taste of the rainbow with this box of Skittles-flavoured singles to go! Each box contains 6 stick sachets that you can add to a 500ml (or 600ml for a milder flavour) bottle of water to create a deliciously fruity Skittles flavoured low-calorie drink! You could even mix and match sachets to create new flavour combinations! They're super convenient for taking the great taste of Skittles candy anywhere you go!