What are BeauGen Cushions? What do they do? - Genuine Lactation BeauGen Cushions are thin, flexible silicone cushions that fit inside breast flanges from size 21mm to 27mm. These cushions reduce the size of the flange by 2 mm making them appropriate for size 19-25 mm. The goal of these cushions is to reduce excess movement and rubbing that can occur for some people when pumping in order to make pumping more ...