M5 Double Sealed Flange | 27mm

The size of the flange is very important for comfortable and efficient pumping.

Some moms experience nipple swelling while expressing, so it is advisable to observe the appearance of the nipple during pumping.

If your nipple rubs or feels squeezed in the flange channel, it is an unsuitable flange size and you need to replace the right size flange insert.

Note:
DO NOT microwave-sterilize to prevent parts from melting. DO NOT expose to temperatures exceeding 110°C.