CERES CHILL OG Breastmilk Chiller, Reusable Storage Container, Up to 34 oz. - Bottle Cooler Keeps Milk at Safe Temperatures for Up to 20 Hours, Connects w/Most Pumps (White) Gently used, all original parts included. Outside has a dent or two, but still works great. I have (2) available, this listing is for 1. Top highlights SAFE - Chills milk for Up to 20 hours (Need more time? just add ice) CAPACITY - 12oz – 34oz of milk storage capacity for busy moms on the go CONVENIENT - Just one container to drop in your bag - Pump directly into the Chiller. Ceres Chill is compatible with most narrow mouth pumps and nipples. If you have a wide mouth pump, you'll need wide to narrow neck adapters VERSATILE - Compatible with major pumps, Use the lid as a bottle to feed the baby EXTRAS - Hand wash only. Adapter NOT inlcuded. Pump and nipple assembly are NOT included with a chiller purchase. Inner chambers are not a chiller