One-Piece Breastshield (19 mm, Extra Small) Compatible with Medela Breast Pumps (Pump in Style, Lactina, Symphony, Single Deluxe, Double Ease); Smaller Than Personalfit 21 mm; Made by Maymom

19 mm internal diameter; Suitable for niple diameter 15.5 - 17.5 mm; One-piece design; easy to clean, less piece to keep, and less chance for suction power loss. Made from BPA/DEHP-free material and all components are steam safe for sterilization. Breastshield x1 (19 mm ID, smaller than Medela's smallest PersonalFit 21 mm breastshield), Valve x 1, Membrane x 1; Compatible with all Medela pumps EXCEPT FreeStyle, Maxi and Harmony. US FDA registered medical device (No. D192499); Comply with US FDA standards for containers that contact food and class II medical device. Test reports are online for your reference; Retail poly-bag packed; sealed by the manufacturer. • Compatible with all Medela breast pumps except Freestyle, Swing Maxi & Harmony • Made from BPA free and DEHP-free material • Can be steam sterilized, microwave sterilized or sterilized in boiling water • Includes breastshield, valve, and membrane • Retail poly-bag sealed for safety