This adjustable flow-rate system can be used to give supplements while keeping baby on the breast. The Supplemental Nursing System is suited for long-term supplemental breastfeedings, has an adjustable flow-rate system and colour-coded tubes for different feed rates. The neck strap and sterile packaging allow for maximum convenience and immediate use out of the package. All parts that come into contact with breastmilk are BPA/DEHP Free. This product includes an SNS container, valve holder, cap and cover, attachment ring, 3 sizes of tubing, tape, neck strap, and instructions. Additional colour-coded tubes are available separately.