Size matters! Not only can the wrong breast shield (flange) size influence milk production and cause discomfort, it can also cause issues with the suction of your pump.
Accessory part for Youha's Electric Breast Pumps or The ONE Express Cups.
Converts Size 24mm breast shield into Size 13mm, 15mm, 17mm or 19mm.
Need a bigger size? Click here.
Please see our FAQ page if you need help with sizing.
