Medela Personalfit Flex Connector (Pack of 2)Description With the overflow protection within Medelas new generations PersonalFit Flex breast shield connector, you can pump in a more reclined and comfortable position, which helps your milk to flow. In addition, with as few parts as possible to wash and sanitise, the connectors themselves are simple to clean. And, as youd expect from Medela, all plastic components are made without the chemical BPA and comply with international safety regulations.