The Tommee Tippee Supersteam Steriliser and Starter Set provides an electric steam steriliser, two Anti-Colic baby bottles, and two Closer-to-Nature baby bottles with a breast-like feel. With a bottle brush and an ultra-light soother, this kit has all your baby feeding essentials in one handy pack. Supersteam Steriliser Starter Set Using natural steam, the Supersteam Electric Steriliser kills 99.9% of bacteria and viruses with an easy one-button start. While sealed, this baby bottle steriliser keeps freshly steamed contents sterile for up to 24 hours. Simply add 800mls of cold water to the steriliser and stack your bottles and accessories in the two-tier rack. Secure the lid and switch on for five minutes. The steriliser will automatically switch off once the cycle is complete.