Symphony Double Pumping Kit. For double or single pumping with a Symphony breast pump. Includes:2 - 24mm PersonalFit FLEX breast shields2 - 150mL (5 oz.) breastmilk storage bottles with lids2 - PersonalFit breast shield connectors2 - Tubes2 - Valves4 - Membranes2 - Membrane caps 2 - Protective membranes1 - Instructions