At Medela, we understand that there are rarely one-size-fits-all solutions when it comes to women’s bodies and the unique changes you experience postpartum and while breast milk feeding your new baby. That’s why we developed an innovative series of breast shields for pumping, known as Medela’s PersonalFit Breast Shields. Available in 5 sizes and engineered for maximized comfort and efficient milk expression, PersonalFit Breast Shields are designed to work specifically with your Medela breast pump. Using our PersonalFit Connectors (sold separately), these breast shields are compatible with all Medela breast pumps except Single Deluxe. What’s Included: 2 PersonalFit Breast Shields (or 1 extra set), 30 mm size All Medela breast pump shields and other products that come in contact with breast milk are – and have always been – made without BPA. Use PersonalFit Breast Shields to begin personalizing your pump and enhancing your breast milk feeding experience, so you can comfortably and most efficiently continue to breast milk feed your little one for as long as you choose. The Personal Fit breast shields are made of Polypropylene.