Hey Mama, With the OG Breastmilk Chiller,  there’s no need for a fridge, bulky ice packs, or plastic bags and bottles. Pump directly into the chiller and enjoy up to 20 hours of safe chilling. Compatible with all major breast pumps, and you can even use the lid for double-pumping or feeding your baby with a standard nipple assembly!  ❤️Easy to use and transport ❤️Travel friendly: TSA loves it! (Pump parts not included)