【Complete Spectra Replacement Parts Kit】 Includes 2X17mm flanges, 4 duckbill valves, 2 backflow protectors, 2 tubing sets, 2×180ml wide-neck bottles. A convenient all-in-one replacement kit to refresh your breast pump accessories. Not original Spectra parts 【Designed for a Secure Fit】 Compatible with Spectra S1, Spectra S2, and Spectra 9 Plus breast pumps. These replacement accessories are designed to provide a reliable connection and help maintain consistent pumping performance for everyday breastfeeding routines 【Upgraded Flange Design】The flange features a soft thicken rim, smooth breast-shield angle, and extended tunnel design for improved comfort and a secure seal. Since every mom’s anatomy is unique, sizing guides are only a reference. For reference, many moms prefer a flange size slightly larger than their measured nipple diameter (typically about 2–4mm), but individual comfort and fit may vary 【BPA-FREE】Made with BPA-free, food-grade material, the replacement pump parts are gentle on skin and suitable for daily pumping. Easily sanitize with steam or boiling water for convenient maintenance 【180ml Breast Milk Storage Bottles】The included 180ml wide-neck bottles allow you to pump, store, and feed breast milk with fewer transfers. Leak-resistant sealing discs help keep milk fresh and make date labeling simple for organized storage at home or on the go TOVVILD Breast Pump Parts for Spectra, S1 S2 9 Plus Replacement Accessories Include Flange 17mm, Bottle, Duckbill Valve, Backflow Protector, Tubing