Medela PersonalFit Flex Breast Shield 30mm Set of 2 These are replacement parts for Medela breast pumps: PersonalFit Flex Breast Shields (30mm). [Contents] - Breast Shield 30mm x 2 - Outer box [Condition] Used a few times. There are no noticeable scratches or stains, but please understand that there may be minor signs of use as this is a used item. Compatible with Medela breast pumps (Solo / Swing, etc.). Selling because I purchased the wrong size. Immediate purchase is welcome. Thank you.