Review on Secure Sipping Made Easy: Munchkin Click Lock Bite Proof Sippy Cup, Blue/Purple, 9 Oz, 2 Pack by Dana Rodriguez

My 1 year old was transitioning from baby bottles to this sippy cup. She didn't mind it or fuss about her milk being in a different bottle. The quality of the parts are good and are easy to put together for the most part. Cleaning the bottles and its parts are easy if you have a bottle cleaner with the smaller nipple brush. I used one as her everyday water bottle and the other as her milk bottle. She was able to bite through one of the bottles after a month or so. Now a few months in, with this last one (using as her milk bottle) it has a slight leak. I don't let her hold onto this bottle any longer than her daily milk consumption. Overall, it is a good go to for bottle transitioning babys. Other than that, you may need to replace the bottles every 3+ months.