Maymom base connectors to be used with Maymom shields of all sizes
Also compatible with:
Medela PersonalFit shields (21, 24, 27, 30, 36 mm)
Pumpin pal shields 
Lansinoh Shields
LacTeck Flanges
Dishwasher toprack safe; Steam safe sterilization
BPA free; Complies with FDA regulation for plastics that contact foods
 
Made by Maymom, not original spectra product. Maymom is not affiliated with Uzinmedicare, the trademark owner of spectra.