Maymom Bottle Thread Changer Narrow to Wide (4pcs/pack)

Enables Medela Breast Pumps (Pump in Style, Lactina, Symphony, Swing) to work with Avent wide-mouth bottles (Note: This ring DOES NOT work with Avent VIA storage cups).
Includes 4 conversion rings plus 4 sealing rings to avoid many leaking events.
You can pump directly into Avent bottles.
BPA free, dishwasher safe, retail pack, sealed by manufacturer.
Also Adapts to: Evenflo Comfort Select, Ameda Purely Yours, Lansinoh Double Electric, Playtex Embrace, Dr. Brown’s Natural Flow Electric/Manual