This is a set including an electric breast pump, a Jokin Jo-zu sterilizer, and a Milk Realization nipple size M. No individual sales, instant purchase OK. - Electric Breast Pump Used a few times. The included Milk Realization nipple size SS has been used, so a size M will be included instead. - Jokin Jo-zu Sterilizer Used for about six months. There is some dirt, and the opening is loose, but I think it can be used without any problems. Please refrain from purchasing if you are sensitive to items stored at home.