Medela PersonalFit Flex Flanges - Two Pack - 21 mm

Description

This is a new, unused pair of 21 mm Medela PersonalFit Flanges that came with my Freestyle Flex. I use a different size, so I'm selling these. Because they came with my pump, I do not have a separate box for them. However, they do come in the original plastic packing materials and are clearly brand new/unused.
They are compatible with both the Freestyle Flex pump parts as well as the standard, older model Medela pump parts.
According to Medela, this new style of flange enables 11% more efficient pumping than the traditional Medela flange shape.