Pump with Confidence! 💪 Crafted from BPA/DEHP free materials, prioritizing your baby's health and safety. Experience the convenience of a two-piece flange that makes cleaning and assembly a breeze. Designed specifically for Spectra S1/S2 pumps, ensuring optimal performance and comfort. Compatible with a variety of wide-neck bottles, including Avent and Maymom, for seamless pumping. Choose from a wide range of shield sizes to find your perfect fit and enhance your pumping experience. BPA/DEHP Free 15mm Flange Size Two-Piece Design The Maymom Two-Piece Wide Neck Pump Parts are designed for use with Spectra S1/S2 pumps, featuring 15mm flanges that cater to mothers with nipple diameters of 13-14mm after pumping. This set includes two shields and connectors, ensuring compatibility with various wide-neck bottles while prioritizing safety with BPA/DEHP free materials. The two-piece design allows for easy assembly and cleaning, making it a practical choice for busy moms.