Maymom Breastshield (flange) with valve/membrane for Medela pumps, 1 pc; 19mm Bottle Neck

Description19 mm ID making it more comfort for the breast feeding moms who has small nipples. Made from BPA/DEHP-free material and all are steam safe for sterilization. Breastshield x1; Valve x1; Membrane x1; Compatible with all Medela pumps except FreeStyle. Comply with US FDA standards for containers that contact food. Test reports are online for your reference. Retail packed; sealed by the manufacturer.