Mason Bottle Glass Baby Bottle DIY Kit – Fits 4oz Mason Jars – Includes 2X Slow Flow Nipples, Silicone Sleeve, and Cap (Ring, Lid, and Jar Not Included) – Made in USA | Includes 2X Slow Flow Nipples, 1x Silicone Sleeve & Cap, Breastfeeding Friendly (Ring and Jar Not Included) Made in USA

We use mason jars for everything, so this just made sense. I love that I can pour pumped milk into a mason jar, store in the fridge or freezer, warm it up in a bowl of warm water, and serve it - all in the same jar. Plus, they stack easily and there is no waste. In the freezer, I place my jars in a freezer bag.I bought the 4 oz. and 8 oz. kits. Do yourself a favor and buy both kits. Then make sure you're stocked up on the right jars. I prefer the 8 oz. jars because they are easier to hold and sometimes I pump more than 4 oz. at a time. I breastfeed about half the time and feed with pumped breast milk the other half of the time (so my husband can bond with our little one) and it's so nice to have 4 nipples and a ton of jars and lids.Our baby loves the nipples. She took to it so quickly on the first try. I do use nipple shields when breastfeeding, which is probably why we can go back and forth so easily.I usually use the turquoise holders to measure pumped milk since my wearable breast pump isn't always accurate. We rarely use them when feeding our baby, but that will probably change when she starts holding her own bottles.I wash everything in this kit in the dishwasher. I also wash mason jars in the dishwasher but hand wash the metal lids and rings.

Switched from Lansinoh (plastic) bottles to these. I primarily nurse my baby but every once in a while we use a bottle. I love that you can use mason jars for it, and he has had no issue with latching afterwards. I feel like the top of it is a great design and promotes a great latch. We have had 0 issues with leaking and everything seems like really great quality

I really liked the idea of having a glass milk storage and consumption setup for my daughter. The mason bottle perfectly enabled that. We stored milk in 4oz mason jars and stashed them in the freezer. Feeding baby at night consisted of thawing a portion in a kiinde kozi bottle warmer, attaching the mason bottle nipple and wham - happily full sleeping baby. We never even used the sleeve thing. Baby liked the vented nipple, which works perfectly, much better than the unvented nipples and bottles that came with the pump. I like that the nipple is simple, it doesn't have multiple parts to clean like other vented bottles. We are now supplementing with formula, prepared in mason jars since baby is older. This product is excellent, durable and investing in a pack or two of 4 or 8 oz mason jars is super useful now for frozen solid baby food portions.This product is awesome.

We LOVED these at first with our kiddo. The only down side is there isn't an inbetween flow option for the nipples which our girl needed. The slow become to slow and the next one up was too fast. So at that point we had to switch bottles, but still works great for bringing snacks on the go with a mason lid or storing purees!

Was hesitant about this purchase, but I’m so happy with it. Doesn’t leak, fits a small mason jar as it’s supposed to. Easy to clean.My little one mostly bf, but on the occasion that she needs a bottle, this works great

I loved this as a product idea and it was not a bad product to use, however the shape of the nipple is not great for breastfeeding babies. The design of the nipple mimics an engorged breast with a tiny nipple poking out and not a real nipple. I didn’t know that as a first time mom and loved these until my lactation consultant informed me it was part of the reason my son was not latching correctly.

When I had received an obviously opened box for this mason bottle kit, I reached out to the company and they shipped a new one out to me within days. Great customer service!The bottle kit comes with a bottle cover, a cap, and two slow-flow nipples. Perfect for our newborn! We love that we are able to collect breast milk and keep in mason jars that we can turn into bottles as needed! It’s minimal and easy! Definitely a must-have, especially if breastfeeding.

I hate plastic and love glass so I was so excited about this, but I was disappointed. 1. The sleeve arrived ripped. I reached out to customer service twice and never heard back. 2. The nipple flow is crazy fast for a newborn. It is a constant steady drip. Even my full term EBF baby, my baby was giving me a hard time nursing after I gave him the nipple that comes with the jar. So, a little hack, get the comotomo nipples instead. They fit right on a mason jar ring! 3. The plastic ring is not well made. Just use the metal mason jar ones and throw them out if they rust. My baby’s 3 months old now and nones rusted. 4. Super pricey for what you get.

Excellent product and arrived ahead of scheduled delivery. Good value for money.