These flanges do not fit into Spectra flanges, must use Medela connectors with Spectra pumps.
The set contains one pair each of Small (Silicone), Medium (Polypro hard plastic) , and Large (Polypro hard plastic) Pumpin' Pal Flanges ergonomically designed for maximum comfort and output
Angled to allow you to sit in a more comfortable position
Made in the USA from BPA-free materials
Fits most major brand pumps including Medela, Hygeia, Lansinoh. Does not fit in Spectra flanges
Pumpin' Pal Breast Pump Flanges (Set Regular S M L Pairs) for Medela Lansinoh Hygeia - This Set Does not fit in Spectra Flanges - B073YFS556