MEDELA SWING BREAST PUMP with 2-Phase Expression A mother s best choice! Swing has 2-Phase Expression which imitates the baby s natural sucking rhythm and is therefore comfortable and efficient. The innovative technology is based on state-of-the-art research and brings the breastfeeding mother all-round comfort and convenience. Proven to feel most like a baby Proven to get more milk in less time Proven to achieve faster milk ejection and faster milk flow Components: -Calma that enables a baby to apply the same feeding behaviour already learnt at the breast. - Breastshield -Bottle, cap & stand - Shoulder/neck strap - Tubing & Valve and membrane - Drawstring bag