Nenesupply Wide-Neck Flanges for Spectra is a replacement wide-neck breast shield compatible with Spectra breast pump. Made by Nenesupply specially for Spectra, this is not original Spectra pump parts. Replacement pump parts for worn Spectra accessories. Contains 2x Breastshields Wide-neck replacement flange for Spectra S1, S2, 9Plus, Dual Compact, Synergy Gold S Compatible with Spectra pump parts including Spectra valve, Spectra backflow protector, and Spectra bottle. Compatible with Spectra wide-neck bottles, Avent wide-neck bottles, Nenesupply wide-neck bottles.They are NOT compatible with OTHER wide mouth bottles. Compatible with Spectra backflow protector and Nenesupply backflow protector for Spectra Comaptible with Spectra valves, Medela valves, Nenesupply valves (refer to product image for the exact compatible types of valves) Same suction power as OEM parts. Flange with smooth angle and longer nipple tunnel for more comfortable pumping Threading provides secure fit to bottles Different flange sizes available – choose from dropdown selection Made from medical grade materials, BPA-free In retail pack sealed by manufacturer. Tested by independent labs for safety. Includes 2x breast shields only. *Refer to 1st product image for what you will receive exactly. Secondary images feature additional products & accessories that are not included. Note: Expiry date stated on product packaging does not apply to non-perishables such as breast pump accessories. Nenesupply sets a “use-by-date” for all their products in general as a requirement from FDA. Please feel free and safe to use the breast pump accessories. *Refer to 1st product image and content list above for what you will receive. Other accessories that are featured in below video(s) are not included. Care: Can be sanitized with water steam, boiling water or microwave-steam bags.