WORST BOTTLES EVER!!!! Bought this for myself and spent 8 months regretting it - The bottles leak - a fact that is well known by the company as I had numerous conversations with them regarding it. I tried every combination of bottle/nipple/ring known to man and still the problem persisted. Imagine 4am being so tired and trying to feed your screaming baby a nice warm bottle only to have half of it leak out all over said baby who then needed a new sleeper and a wipe down. This being said the company (after 5 seperate occasions of me calling and them sending me new nipples etc to try and fix the problem) did apologize and set me a lovely dish set and some soothers - still not worth the hassle however! I would have simply changed bottles however my daughter wouldnt take a different nipple OTHER than the avent bottle nipples, the problem finally got fixed by using the nipple with a different type of bottle (parents choice wide bottles).