The NIB Willow Reusable 27mm 2 Milk Containers offer a convenient and eco-friendly option for nursing mothers. Made by the brand Willow, these double electric breast pump containers are designed with a 27mm size to fit most standard pump flanges. The white color and sleek design make them aesthetically pleasing, while features like a closed system, BPA free material, and low noise operation ensure a hygienic and discreet pumping experience. Powered by batteries, these containers provide flexibility and convenience for busy moms on the go.