Pump, Store, Pour. Ameda's unique flange adapter easily twists onto any Ameda pump flange and allows for easy bag attachment. No more sticky tapes or twist ties that can tear and break. Gusseted bottom 5-oz milk storage bags feature convenient pour spout helps prevent spills when dispensing. Easy-close zip seal won't leak and allows Mom to dispense smaller amounts when needed. 20 storage bags and 2 reusable flange adapters included.