What is my Willow® flange size and what sizes are available?

REUSABLE BREAST PUMP FLANGES: Designed with moms in mind, Willow Breast Pump Flanges ensure effective suction during your hands-free pumping

Willow Go Breast Pump Flanges, 21mm, 2 Ct, Breast Shields for Willow Go Wearable Double Electric Breast Pump, Easy to Clean, Dishwasher Safe and BPA

Willow® 3.0 Help Series - Find Your Flange Size

Willow Breast Pump Sizing Insert - 19mm : Target

Willow Go Wearable Double Electric Breast Pump Kit : Target

Willow Go™ Wearable Breast Pump - The Lactation Network

REUSABLE BREAST PUMP FLANGE INSERTS: Designed to help optimize comfort and output for moms who measure smaller than 21mm, Willow Breast Pump Sizing

Willow Breast Pump Sizing Insert, 21mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow

Willow Breast Pump Sizing Insert Set

Willow 3.0 Breast Pump Flanges - 21mm - 2pk

Willow Go™ Help Series: How to Find the Right Flange Size

Willow Breast Pump Sizing Insert, 19mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange : Baby

REUSABLE BREAST PUMP FLANGES: Designed with moms in mind, Willow Breast Pump Flanges ensure effective suction during your hands-free pumping

Willow 3.0 Breast Pump Flanges, 21mm, 2 Ct, Breast Shields for Willow 3.0 Wearable Double Electric Breast Pump, Pair with Willow Spill Proof Breast

Willow Breast Pump Sizing Insert, 21mm, 2 Ct, Flange Inserts for Breast Pump, Improves Fit and Comfort for Breast Pumping Moms, Fits in 24mm Willow Breast Pump Flange : Baby