2PCS Flange Insert 17mm Compatible with Medela/Spectra/Willow/TSRETE/Momcozy S9/S12/S9Pro/S12Pro Breastpump 24mm Shields, Reduce 24mm Nipple Tunnel Down to Correct Size, Pump Parts Replace

They works with many machines

I love these inserts! I use them with my Eufy S1 Pro and they fit great with it. I have also used them with my Spectra but they are a little harder to fit. I actually like them more than the flanges that came with my pump.

These are great, they are easy to get in and out of my flanges, wash nicely and create a nice suction for my pump. The silicone is very soft and I like that they are clear so you can see thru them unlike other brands that have a frosted appearance. The price is perfect so you can purchase a few for back up. Definitely recommend and will buy again.

These made my daughters breastfeeding journey so much easier and more comfortable! Great product.

I really loved how this works for the medela hand pump, since the standard is 26mm. I needed a flange that was smaller to get optimal suction for milk supply without damaging my nipple. Slides right in, and easy to clean!

These work very well. No pumps come with my flange size so I always need to purchase inserts. These definitely get the job done and allow for good suction.

Bought these for my spectra s1 pump and they really helped me get the right fit and make it a little more comfortable. Wish I had found them sooner.

What a big difference a couple mm can make. Works perfectly with my spectra gold pump. I ordered the 17mm and it was night and day between the 20mm that came with the pump. Made pumping quicker and a lot more comfortable. Worth it’s weight in gold.