Willow 3.0 Breast Milk Storage Bag 118 ml Plastic Clear - 96 Count CaseBreast Milk Storage Bag Willow 3. 0 4 oz. Plastic Clear Patented technology offers 360 of leak proof mobility so you can use your wearable breast pump in any position Milk collection and storage all in one no need to seal or transfer after pumping Hygienic and not made of BPA for a safer pumping experience Holds up to 4 ounces per side There are eight dozen bags in a case