Me and my wife are on our second child at the moment but before we got here we obviously had our first baby boy. As a new parent I became obsessed with finding what’s best for my son and I read every review possible on baby bottles and believe it or not I don’t remember looking into Joovy until we had already purchased three different brands and types of bottles. Joovy has now become my go to for my baby’s and I can proudly say I highly recommend them. This bottle is easy to use, clean and assemble as it only comes with 4 pieces for the most part. They look nice and are very tough, oh and I repeat they are easy to clean!!!Extremely disappointed in this product.Registered for the starter kit and was confident with all of my research that it was ok to spend this much on a bottle.Within 2 uses, the print on the sides of the bottles are rubbing off. 2 uses! All I did was hand wash them and sanitize like any other bottle. That's horrible. I can't see how many ounces I'm pumping or feeding my daughter.Also-the caps are horrible to screw on so I don't know if they are being sealed tightly enough so they breastmilk is not compromised in the fridge when storing.The nipple sometimes leak and we have wasted breastmilk.I would like a full refund and will be looking at a different brand unfortunately.I really wanted to like the bottles. My daughter did like them so that was a positive.I will be contacting Joovy as well if unable to get a full refund through here.I love these bottles! I loved that the set came with all nipple levels. Unfortunately my son (who is primarily breastfed) does not like it.Great bottles, just annoying that there are only 2 grey rings and that u cant just use all the bottles u have to put those grey rings before using it. Purchasing additional grey rings is quite expensive as well.I believe this product was used and returned I found a hair inside one of the bottles that was sealed. I bought this on sale but I didn't see anywhere that it said it was used. However I love this bottle for my baby would give 5 stars if not for the hair :(.We have tried different bottles with our son and he has either collapsed the nipple or the bottle was a pain to clean. He likes the style of this nipple and I Love the easiness of cleaning the bottle and parts.The set is amazing for the price, we love themexcellent price as compared to retail storeExcelente producto . No necesité comprar más mamilas. Mi hija las usa desde recién nacida y ya tiene más de 1 año y sigue usándolas. Muy resistentes