Avent Via Breast Milk Storage Kit 1 Kit

I really liked these for pumping and storing Breast milk, but prefered the bags for freezing, as milk defrosted better in the bags.  The lids occasionally didn't screw on the right way and so I would get a leak now and then when using the bottle converter with them as well.  But I did use them, and they were easier than keeping a bunch of bottles around for me, because they stacked.