The closed system, Dr. Brown's Customflow Double Electric Breast Pump helps moms find the most comfortable setting to help produce the most milk. Featuring Dr. Brown's SoftShape Silicone Shields! The FSA-eligible Customflow Double Electric Breast Pump offers more lactation and expression mode settings to help moms find the one that works best for them. The one-piece, 25 mm SoftShape Shields are made of soft, 100% silicone that remain flexible and gentle for any breast shape. Additional sizes available. Portable and lightweight, the Customflow fits pumping bags and features silicone stretch walls to hold wide or narrow bottles, pump parts, snacks, drinks and more. A built-in timer and pause button let you stop and start on your schedule, while settings memory makes it easier to replicate your best milk production sessions. Get everything you need to pump, store, and feed with the included Dr. Brown's Options+ Narrow Bottles, Storage Travel Caps, and slowest-flow Preemie Flow Nipple. Already have Dr. Brown's Wide-Neck bottles? Use the included adapters to pump directly into them! Choose from a wide range of add-ons like a rechargeable portable battery and car adapter to fit every pumping need.