The Starter SNS TM pictured here with an 80ml bottle - is a smaller version of the Supplemental Nursing System for when the problem is minor and a less expensive, short term solution is needed. The manufacturer recommends using it for no longer than 24 hours. However, I have seen it work (with care) for up to a two or three weeks. Just squeeze warm water through the tubing after each feed to clean. If you already have an infant feeder than you can get the kit without the container.