Maymom Pump Part Compatible with Spectra S1/S2 Pumps; Incl 27mm Wide Mouth Flange; Not Original Replaces Shield (Two Flanges)

2x 27mm widemouth flange compatible with spectra s1 pump, s2 pump and 9 pump. Suitable for mother with a nipple diameter 25-26mm (measured AFTER a pumping session). Suitable for spectra s2 accessory replacement. IMPORTANT! Not a direct alternative to Spectra 28mm Flange: Maymom 27mm flange features a smoother curvature and a longer, roomier flange tunnel to help reduce nipple pain caused by contact with the back of the flange. Due to design differences, some customers report that our 27mm feels larger than Spectra 28mm. If you're seeking a smaller flange than Spectra 28mm, this product may NOT meet your expectations. Maymom also offers 25mm flange, which is smaller than Spectra 28mm and larger than 24mm. The 25mm flange is recommended for moms with a nipple diameter of 23-24mm after pumping. Please measure your nipple size before purchasing. A detailed explanation is provided in the product images. Works with spectra wide mouth bottles, AVENT bottles, and Maymom wide mouth bottles. They are NOT compatible with OTHER wide mouth bottles. Made by Maymom, not original spectra company. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra. Dishwasher toprack safe; Steam safe sterilization; BPA free; Complies with US FDA regulation for plastics that contact foods