Maymom Breast Pump Kit Compatible with Medela Pump in Style Advanced Pump; 2xTwo-Piece 19mm Breastshield, 2 Valve, 4 Membrane, 2 Replacement Tubing; Replacement Part for Medela Shield, Medela Valve

Contains 2valves, 4 membranes, 2 pump-in-style tubes and 2 Two-piece breastshields, 19 mm and 2 base connector; Comparable to Medela small breastshield or medela 21 mm breastshield. US FDA registered medical device (No. D192499); Complies with US FDA standards for containers that contact food and class II medical device. Passes FDA inspection. Test reports are online for your reference; BPA free; Retail poly-bag packed; Sealed by the manufacturer -Maymom Bottles are not included. You can use any Medela bottles or other cheap standard sized bottles (like Gerber, Nuk, and Playtex available from your local drug/grocery/dept stores). Maymom pump parts compatible with Medela Pump in style pump. NOT compatible with Medela Pump in Style with Maxflow, Swing Maxi, FreeStyle, Sonata, Symphony, Harmony.