Perfect for overproducers! These fit my Spectra flanges perfectly.They hold 8-9oz per bottle.They don't add too much weight on their own, but of course when full they are weighty.I love the size and feel of them. They work wonders, as I am an overproducer and pump a minimum of 5oz per pump and that overflows the bottles that come with the spectra. They've held up to dozens and dozens of washes in the bottle washer already and are still going strong, which speaks wonderfully to the durability.Overall. Perfect bottles, fit and oh the lids? Those are leak proof and easy to clean as well!

Great option Very convenient and functional. They do not leak. They also fit my Spectra very good. I would purchase again if needed.

Love them! These breast milk storage bottles are very convenient and easy to use. They seal well without leaking and are great for storing and organizing milk. Cleaning and reuse are simple, which is a big plus.

Almost perfect a Love these for my medela hand pumps! The only thing that would make them perfect is if they fit in the portable bottle coolers. I maybe just buy more medale handles and use these. I wish they set came with at least 2 attachments. Wonderful product

These are perfect These have been a life saver for storing milk on the go during the day. The quality on them is great. Totally recommend to new moms.

Love them Fit my Spectra pump perfectly. Great size for storing milk in the fridge. Very easy to clean.

Find bottles Works perfect for milk storage. Fits onto my spectra pump which is so helpful. Leak proof and easy to clean. Only complaint is the numbers are coming off and I have only had them for a week. Pretty disappointing, not sure what else to do so they don’t continue wearing off.

No leaks These milk containers are fantastic. They wash well, hold a good amount and you can even add a nipple to them and use them as a bottle. No issues with leaking so I love them for travel.