Willow Innovations Inc Willow 3.0 Flange Set for Willow 2.0 and 3.0 Breast Pumps, 21 mm (16/CS)

• Flanges are interfaces between the breast and the breast pump; a flange creates a seal around the breast, allowing suction to be applied to extract milk from the breast efficiently
• Clear flanges have a quick-snap closure for easy placement and fast assembly
• Use these flanges with Willow spillproof milk bags
• There are a pair of 21 millimeter flanges in a pack