2x Two-Piece Breastshield (13 mm, suitable for mothers with nippi diameter after pumping 11-12 mm), Saucer Series. Compatible with Selected Medela Pumps (New Pump in Style with MaxFlow Pro Pro+, Pump in style, Lactina, Symphony, Swing, Mini Electric, FreeStyle, Swing Maxi, Sonata and Harmony, Freestyle Flex). Also compatible with Lansinoh SignaturePro SmartPump Manual Pump, replace Lansinoh Flanges. NOTE: connectors are not included in this listing. Flexible Fit for Various Breast Shapes – The shallow, saucer-like flange provides a freer, more natural fit that gently adapts to large, small, firm, or soft breasts—helping reduce hard-edge pressure and enhance overall comfort. US FDA registered medical device (No. D192499). Comply with FDA regulations for plastic materials that contact food. Test reports are conducted by independent lab and available for reference. Retail poly-bag packed; sealed by the manufacturer - Maymom, not original Medela parts Made of Bisphenol-A (BPA)/DEHP-free material. Can be cleaned with water steam, boiling water or microwave-steam bags. Retail poly-bag packed, sealed by the manufacturer - Maymom. 13mm Maymom MyFit Shields, Saucer Series; Compatible with Medela Breast Pump- PersonalFit, Freestyle, Harmony, Maxi, Freestyle Flex Connector; Connect to Maymom Widemouth/Narrow Connector, 2pcs