NUK Smooth Flow Pro Anti-Colic Baby Bottle Replacement Nipples, 2-Pack

I was offered the opportunity to test out a new product on my 3mth old daughter from the Nuk company. I received in the mail 2 different baby bottles which were called smooth flow anti colic bottles. I used basic baby formula which is similar pro advance (blue color top). I have used that formula since she was born. I was used to using Dr. Browns bottles. After trying the Nuk brand I definitely choose to switch to the Nuk bottles from after just using them a few times. The pros to using the Nuk brand is there are many less pieces that are needed to make the bottle useable. That saved me much more time with dishes, finding many different parts that would get lost in my sink and drain board so that was a major plus. Also the doctor brown bottles required much more cleaning in very tough places unlike the Nuk brand. My daughter loved the Nuk bottles and she definitely wasn't having any gas problems at all. Also the price difference was very much affordable purchasing the Nuk brand. Win-Win for everyone!

Fits the nuk bottles perfect. I didn't realize that you can't separate the nipple from the ring.