The flange is used as any regular breast pump flange. However, because it's soft, it will "absorb" some vacuum so you may need to turn your pump up a little bit. When using, please insert tightly into the connector to ensure a good seal.

The flange is directly compatible (no adapters needed) with Medela, Lansinoh, and Hygeia pumps.

To use with Spectra or Motif pumps, please refer to this Spectra and Motif Hack. To use with Willow pump, please refer to this Willow Hack. To use with Freemie cups, please refer to this Freemie Hack. To use with Spectra cups, please refer to this Spectra Cup Hack. You can also use it with Baby Buddha pump by following the component hacks.

We usually recommend getting the Maymom Spectra Adapter for use with Spectra pumps.

We currently offer 12mm, 15mm, 18mm, 21mm , 24mm, and 27mm.

Please note that the BabyMotion Flange has a different design than regular plastic flanges so sizings from different brands are not directly comparable. You can measure your nipple size before pumping using the Nipple Caliper and then refer to the below sizing guide (we suggest before pumping measurements especially if you have elastic nipples). If you have additional questions, please use the chat box on our website.

Pre-pumping Nipple Size ---------->BabyMotion Flange Size

10-12mm ------------------------------->12mm

13-15mm ------------------------------->15mm

16-18mm ------------------------------->18mm

19-21mm ------------------------------->21mm

22-24mm ------------------------------->24mm

25-27mm ------------------------------->27mm

The flange is heavy because we have to ensure that the breast pump efficiency is not compromised when using a soft material like silicone. Because it's heavy, please make sure to disconnect the flange first once done pumping to prevent bottle from tipping over and losing precious breast milk. We also recommend using a tight fitting pumping bra.

Before first time use, wash with warm soapy water and steam for 3 minutes to sterilize. Afterwards, simply wash with warm soapy water and air dry. It's ok to sterilize with steam occasionally but we do not recommend frequent steaming as discoloration may occur.

Most likely due to it not being inserted tightly. Please use a twisting motion to insert it all the way into the connector. Please refer to this instruction for more details on how. It could also happen when there is residual milk/oil left on the flange or the connector. We recommend using warm soapy water or baking soda to thoroughly wash both parts.

No. We don't recommend it because they will be cold and attract moisture once taken out of the fridge, making them slippery and hard to stay on the connector.

Yes, although we suggest washing the oil/lubricant off with warm soapy water thoroughly after each pumping session.

The BabyMotion Flange should last a few months and only need replacement when you notice cracks or discoloration.

Not worries at all! We understand that finding the perfect flange fit is absolutely crucial for comfort and maximizing your milk output—and that getting the size right the first time can be tricky! That's why we offer our Worry-Free Sizing Guarantee.

If you order the LacTeck BabyMotion Flange and find that the size isn't quite right, don't stress. Just contact us, and we will happily provide a one-time, free replacement for a different size to ensure you achieve the optimal fit for your pumping journey.