Breast Pump Kit (Breastshield Small, 21mm) for Medela Lactina and Symphony Breastpumps. Include 2 One-Piece Breastshields (Replace Medela Personalfit 21mm and Personalfit Connector. 21mm of 4 available sizes, 21mm, 24mm, 27mm, and 30mm), 2 Lactina...
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