MAYMOM PUMP PARTS COMPATIBLE WITH MEDELA PUMP IN STYLE ADVANCED BREASTPUMP & MEDELA PUMP IN SYLE PUMP; NOT compatible with FreeStyle, Swing Maxi, Sonata, Harmony, Pump in Style with Maxflow Pro Pro+.Contains 2 24mm breastshields, 4 valves, 6 membranes, and 2 tubes. IN RETAIL PACK, sealed by Maymom. This kit contains everything you need for pumping except the main pump unit and bottle. This kit is compatible with Medela bottles and many other standard sized (narrow) bottles on the market. BPA free; DEHP free. Retail poly-bag packed; Sealed by the manufacturer Satisfaction guaranteed by Maymom. If you want to use a handsfree bra, Simple Wishes is the choice. It is not compatible with some home made hands free bra or Medela's hands free bra. This product is made by Maymom, and not original Madela products.

It is well known that using the correct breastshield size is important for your pumping comfort and optimal milk supply.

Compared to Madela valve, our design of valve allows your precious milk to flow easier into the bottle. The pump in style replacement tubing set will be compatible with Medela Pump in Style Original (sold before 2004) and Pump in Style Advanced Breastpump sold after July 2006. Maymom breastshields can compatible with Medela storage bottles and other standard-sized bottles like Gerber, Playtex and also compatible with Ameda. They are 100% compatible with Medela valve and Medela membrane.

Disclaimer: Madela and Pump in style are registered trademarks of Madela Holding AG, Switzerland. Maymom is no affiliated with Madela nor dose Madela endorse this product.