The reusable pump set includes everything mothers need to single or double pump with the Symphony Breastpump. The multibox is exclusively available for hospitals. It includes 20 pump sets, each with: a 150 ml breastmilk bottle which is perfect for collecting, storing, portioning and feeding breastmilk a PersonalFit Breastshield in size M (24mm), L (27mm), or XL (30mm) The PersonalFit Breastshields in sizes S (21mm), M (24mm), L (27mm), XL (30mm) or XXL (36mm) are also available in multiboxes of 25. Using the breastpump The comfortable reusable breastpump set can be used with the Symphony 2-Phase Expression Breastpump. The 2-Phase Expression Technology perfectly mimics the natural suction rhythm of babies. Initially, a light and fast pumping rhythm stimulates let-down which is then followed by a slower, deeper rhythm which optimises the milk flow. In this way you get more milk in less time. All parts that come into contact with breastmilk are, of course, BPA-free.