Medela Symphony® Double Breast Pump Kit, For Single or Double Pumping, BPA-Free, Safely Collect, Store and Feed Breast MilkMoms don't have to pump both breasts to use the Symphony Double Breast Pump Kit. Symphony functions as a single pump if desired. Includes tubes, bottles, membranes, breast shields and valves (Breast Pump not included). Includes 2 standard PersonalFit™ (24 mm) breast shields. Safely collect, store and feed breast milk. To be used with Medela Symphony Plus Hospital Grade Breast Pump