One-Piece Breastshield (Comparable to Personal Fit 24 mm) + 22 mm Insert (Comparable to PersonalFit 21 mm) for Medela Breast Pumps (Pump in Style, Lactina, Symphony, Swing, Single Deluxe, Double Ease, Manual) w/ valve & membranes; Made by Maymom
It is well known that using the correct breastshield size is important for your pumping comfort.  However, finding a correct size is not easy.  This kit allows you to try both 25 mm and 22 mm sizes without buying extra sets of breastshields.  This kit is designed to work with Medela's pumps including Pump in Style, Lactina, Symphony, Single Deluxe, Double Ease, Double Plus and Manual pumps. It does NOT work with FreeStyle and Harmony.  Disclaimer: Medela is a registered trademark of Medela, Switzerland.  Maymom is not affiliated with Medela nor does Medela endorse the product.