Thinkbaby Baby Bottle to Sippy Conversion Kit, Green

I love the Thinkbaby bottle product. My son has used the bottles for 18 months, it was the only bottles that we wanted for him based on my research. I was excited to move him from the nipple to the sipper nipple after he turned 18 months. However the sipper nipple keeps leaking around the base where the rubber nipple bottle top meet and it falls into the bottle. Leaving his shirt wet and sometimes on his face. I have purchased three different sipper Conversion kits hoping that the new one would fix the problem. But it did not. I still love the bottles, even after the fails and he does also. We tried other sippy bottle/cups and they were of no comparison. These are easy to clean and they already fit into my routine. So we just purchased a new full sippy bottle and we will see how it goes.**I have noticed that this new one has a different top that you insert the nipples into.**

This sippy nipple is the only one my daughter will use. She is very particular about both her bottle and nipples. We have tried every sippy cup: Nuby, Munchkin, OXO, Nuk, etc. She even hates the MAM sippy cup rectangle nipples. Literally spent over $100 trying to find ONE cup she likes. I ordered a Thinkbaby sippy bottle and she hated it. On a whim, and desperate, I decided to try the nipple in her MAM bottle and it fit perfectly! She is doing so much better with her milk now! If you have a particular baby like mine, try these nipples on your other bottles, it might just work!

Good product, shipped fast. Cute color and great idea. Only problem is I accidentally left it in my shopping cart and checked out without paying attention. I was doing a little research to find out if it is compatible with my Medela bottles (which it is not). I was distracted by it, and checked out before realizing I left it in the cart.

My 4th child has been crazy picky we have literally tried 11 different nipple shapes and I was beginning to give up hope on ever being able to return to work but she actually loves this nipple shape!!!!!!! Highly highly recommend

This item was purchase to save the costa of buying unnecessary individual sipping cups. Transforming existing bottles to sippy cups/bottles worked great.

Good idea except my baby bit right through it. We went through 5 nipples before giving up. I really like think baby. Unfortunately this is a miss.

Great shape but nipples split open in a week or 2. I've purchased several replacements but will now give up.

These were okay until our son discovered that he can push the nipple into the bottle and dump liquid all over himself .Poor design

My son finally loves it