Contents: 2 Shields (10mm), 2 Wide-mouth Connectors, 2 Duckbills (3rd Gen). The 10mm shield is suitable for mothers with nippie diameter 8-9mm AFTER pumping . The shield and connector constitute a breast pump flange. The whole set works for double pumping

Flange Features: Separable TWO-PIECE flange compatible with spectra pump, NOT like one-piece Spectra flange. Made by Maymom. Two-piece construction is preferable for easy assembly, disassembly and cleaning. It also fits most hands free pumping bra on the market and home-made bra. Available shield sizes : 10mm, 11mm, 12mm,13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 27mm, 28mm, 30mm, 32mm, 34mm,36mm.

Compatibility: This set is compatible with Spectra Pump S1, Spectra S2, Spectra 9 Plus. Compatible ONLY with widemouth(wideneck) bottle, like Spectra wide-neck bottle, Maymom widemouth bottle. To make it compatible with Medela bottles, try Maymom 3rd Gen Bottle Converter (Amazon ASIN: B07MGSNJYJ).

Regulations : All parts that come in contact with breast milk are BPA/DEHP free. Made by a US FDA inspected company, Maymom. Refer to her online access for test reports.

Retail poly-bag packed; sealed by the manufacturer, Maymom. NOT original Spectra flange, NOT original Spectra pump parts. NOT original Spectra S2 Accessories. NOT original Spectra S1 accessories.