Medelas PersonalFit Flex Connectors offer a closed system for your Medela Pump in Style with MaxFlow, Swing Maxi, and Freestyle Flex breast pumps. Large openings and less parts were designed to make cleaning easier. Great as a spare set or replacement for worn or damaged connectors. Medela Authentic Pump Accessories: Only Medela offers replacement connectors tested and designed to work with your Pump in Style with MaxFlow, Swing Maxi, or Freestyle Flex breast pumps.COMPATIBLE WITH: Medela’s Pump in Style with MaxFlow technology, Swing Maxi, and Freestyle Flex breast pumpsCLOSED SYSTEM: Overflow Protection prevents milk from overflowing into the tubing and motor. Easy to assemble and clean.MEDELA AUTHENTIC SPARE PARTS: Quality and performance you can trust. Have an extra set for work or travel, or a replacement for lost or damaged connectors.COMFORTABLE DESIGN: Pump in more reclined and comfortable positioning.CUSTOMIZED FOR YOU: Works with all PersonalFit Breast Shields and sizes, including the PersonalFit Flex Breast ShieldsMADE WITHOUT BPA: Safe for you and baby.What’s Included:(2) PersonalFit Flex Connectors; (2) Membranes