The MAM Twister teether is for 6+ months. It is BPA free, Phthalate free and PVC free so it is safe for babies. It has been approved by the International Children Medical Research Society.
My main concerns were:
As they are lots of pieces screwed together, would they leak?
Will BabyG drink from them as the teat is different to what he has been using?
Will it be too fiddly?
These were good. They were so handy for when we were out and about as we could either just take the whole box of formula with us or pick up some ready made milk and we didn't need to worry about how many bottles we took out with us.
The bottles leaked two or three times while we were testing them which was fairly annoying. However we then realised that during sterilisation, the white rubber ring would occasionally lift up which is what caused the leakage. Once I discovered this, I made sure we pushed it firmly in to the base and we didn't experience any leaks after that.
The self sterilising bottles have a couple of extra pieces compared to normal bottles. I thought it would make it fiddly and time consuming but I got used to it very quickly. It's so handy that you can just put one in the microwave to sterilise, especially when you are out for the day. The only problem would be if you didn't have somewhere to wash the bottle.
It does take a little longer to do 3 bottles (5 minutes) than it does to do just one (3 minutes). Plus, when doing bottles in the big steriliser it takes 3 minutes to do them all at once, but if it is day time and you're not desperate for a bottle straight away then it doesn't really make a difference as it is only a couple of minutes extra.
We got on really well with these bottles and we will happily keep using them.
I was given these products by MAM to review but you can purchase them from www.mamonlineshop.com or from most babies retailers.