Incredibly functional and convenient, the Willow Go wearable breast pump is the perfect companion for breastfeeding moms. It features a cord-free wearable design with two flanges of 21mm and 24mm size, that fits entirely into your bra to allow easy hands-free pumping. Its powerful battery can last up to five sessions and it fits both 5oz. and 7oz. containers to suit your needs. | Willow Go Hands-Free Double Electric Breast Pump