Steri bottle is ready to use, disposable and recyclable for babies. The box contains 2-9oz bottles and nipples with lids. These bottles are sterilized, free from BPA and phthalates. The nipple is an anti colic valve. These bottles are a time saver. When you are out and about or just the last bottle of the day. Open a bottle up put the milk in the bottle and it’s ready. When you are finished the bottle is 100 percent recyclable. You can forget the hassle of washing and sterilizing. Just fill, feed and recycle. Steri bottle is the first ready to use bottle to come with a wide, steri soft textured nipple. And a steri bottle. Every feed is fresh and clean. Steri bottle is definitely a way to make it easier for feeding time while on the go. I would definitely recommend these steri bottles. For more information click here.