Medela Freestyle Hands Free Breast Pump, Double Electric, Complete Kit, 101044164, 8 Piece Set combines the flexibility of in-bra pumping with the performance of a traditional electric pump. With just 3 parts for easy use and cleaning, this double electric breast pump includes anatomically-designed cups that help maximize milk flow*. Each cup holds up to 5 oz and features a curved rim design for less breast compression**.The Freestyle Hands-free breast pump also connects to the Medela Family app, where you can track pumping sessions, log virtual milk storage, and more. * Mizuno K, Ueda A. Pediatr Res. 2006; 59(5):728–731. ** Prime DK et al. Breastfeed Med.2018; 13(7):A-45.