The Medela Harmony Manual Breast Pump is a lightweight, portable breast pump designed for occasional use. It features 2-Phase Expression technology that mimics a baby's natural nursing rhythm and comes with PersonalFit Flex breast shields for enhanced comfort and efficiency. Key features: • 2-Phase Expression technology mimics natural nursing patterns • PersonalFit Flex breast shield with 105° angle for better comfort • Ergonomic swivel handle for easy operation • Lightweight and portable design • Easy to clean and assemble • Compatible with all Medela bottles and storage containers This manual breast pump is ideal for mothers who pump occasionally or need a backup to their electric pump. The pump can be operated with one hand and allows you to adjust the vacuum level to your personal comfort. The PersonalFit Flex breast shield rotates 360° to find the most comfortable pumping position. All parts that come in contact with breast milk are BPA-free.