For use with Medela bottles - Calma by Medela has a patented air-vent system that allows milk to flow only when baby creates suction. It's suitable for all ages, eliminates the need for flow rate adjustments, and fits all Medela collection and storage bottles. Calma can be cleaned, stored, and transported, and is made without BPA.
Includes 1 Calma Nipple (base, top, nipple), 1 Cap, and 1 Lid.
