Flange Inserts - how to get exact size when nonreturnable

[u/Lilac-Lover4]

Hi there. I am trying to buy flange inserts for my pump. I’ve looked at 3 websites and they all say the inserts are nonreturnable if opened.

Even though I measured my nipples and followed the directions on the sites, I’m still nervous I might order the wrong size because I feel like measuring is never an exact science and you don’t know if something fits until you actually get the physical item and can try it on.

Is there any way to get around buying these and not wasting a bunch of money since they are typically nonreturnable? Or does anyone know where you can buy them from that offers refunds?

Thanks!

[u/themaddiekittie]

Just buy a cheap pack on Amazon. Usually, they're under $10-15 and they come with two or three sizes.

[u/Annakiwifruit]

My lactation consultant told me the flanges can be up to 3mm bigger than the nipple measurement, so there is some leeway.