Willow Breast Pump Sizing Insert | 19mm for 15mm-17mm Size | Improve Fit for Willow Wearable Breast Pump Flanges & Containers 24mm Only

The Willow Breast Pump Sizing Insert is designed to improve the fit and comfort for users of the Willow Wearable Breast Pump. Made from flexible silicone, these inserts are ideal for those with a flange size smaller than 21mm. They are easy to assemble, reusable, dishwasher safe, and designed to work exclusively with the Willow Wearable Breast Pump Generations 2 and 3. These inserts ensure a seamless fit and optimal pumping performance. • Designed for the perfect fit and performance with Willow Wearable Breast Pump • Made from flexible silicone for comfort • Ideal for flange sizes smaller than 21mm • Easy to assemble and use • Reusable and dishwasher safe