The Supplemental Nursing System is a nursing device specifically designed to help mothers and parents to breastfeed / chest feed by supplying additional milk to the baby while they are being fed at the breast / chest.
Medela Supplemental Nursing System Cleaning & Assembly Instructions
What’s Included: (1) 5oz Container and Lid; (1) TwistLok Lid; (1) TwistLok Tube; (1) Ring; (1) Cleaning Aid; (1) Clamp; (1) Clip