One size does not always fit all, so Medela developed PersonalFit Breastshields in a range of sizes to meet every mom"s needs for maximum comfort & pumping efficiency. Lactation professionals agree that proper breastshield fit is essential for not only comfort, but also for effective milk expression. Made without BPA – Safe for Mom & Baby For use with PersonalFit connectors (sold separately). Compatible with Medela breastpumps except Single Deluxe. Try Medela Quick Clean family of products for safe, easy & convenient cleaning of breastpump parts and breastmilk feeding products. Contains 2 PersonalFit Breastshields The Affordable Care Act (ACA) is expanding benefits for breastfeeding support and supplies. To learn more about these changes and how it might impact you, read medela"s ACA overview.