Manual Breast Pump Evenflo AdvancedThe Evenflo Feeding Advanced Manual Breast Pump is lightweight, portable, and designed for occasional use pumping A manual breast pump does not require power and is great to have to help relieve pressure when milk comes in or use if baby sleeps through a feeding Multiple flange sizes (24. 5 mm and 30. 5 mm) are included with the pump; the flange in the part of the pump you place against the breast A proper flange fit is important it not only gives a