Dual HygieniKit Milk Collection System with One-Hand Breast Pump Adapter and Flexishield Areola Stimulators - Product Benefits: All Ameda HygieniKits are uniquely designed to help protect breast milk and baby from bacteria, mold, and viruses. Ameda has the world's first milk collection system with a Proven Airlock Protection barrier. Proven Airlock Protection means while pumping our diaphragm keeps the air from the pump from coming in contact with the milk. - Without BPA and DEHP. Product Features: (2) 25.0 breast flanges, (2) Silicone diaphragms, (2) 4 oz./120 mL bottles, (4) White valves, (2) Adapter caps, (2) Silicone tubings, (1) Tubing adapter, (2) 2-piece lock-tight bottle caps, (1) One-hand breast pump adapter, and (2) Flexishield Areola Stimulators