Hey pumping moms! If you're using a Spectra breast pump, you know those duckbill valves and silicone membranes need replacing every so often to keep your suction strong. This PumpMom set has you covered with 8 duckbill valves and 2 silicone membranes that work with Spectra S1, S2, 9 Plus, M1, Dew 350, and even Motif Luna pumps. Made from food-grade silicone that's totally safe, you can clean these with water, steam, or even boiling water to sanitize them. Just rinse with clean water after washing with soap - but skip the dishwasher and don't use hard brushes that might damage them. The thin tips clean best with your fingers. Quick heads up - these are PumpMom's own brand, not original Spectra parts, but they're designed to work perfectly with your pump. The company really focuses on making products that simplify parents' lives, and they stand behind everything they sell. Having extras on hand means you won't be stuck with weak suction when you need to pump. Nothing worse than realizing your parts are worn out right when you need to pump! These replacements help maintain that strong, consistent suction that makes pumping more efficient. Plus, at this price for 8 valves and 2 membranes, it's way more affordable than constantly buying original parts. Your pump will work like new again with these fresh parts installed.