Only Medela offers authentic replacement tubing that is designed and tested to work specifically with your Freestyle Flex and Swing Maxi Breast Pumps. The Medela Freestyle Flex and Swing Maxi replacement tubing can be used as a convenient spare or replacement for worn or damaged tubing. Medela replacement tubing is made with the quality materials and workmanship that moms expect from our brand - inauthentic or counterfeit parts can vary greatly in terms of quality, materials used, and overall workmanship, all of which may adversely affect the performance of your Breast pump. One complete set of tubing is included. Additionally, all Medela Breast pump parts and accessories that come into contact with breast milk are made without BPA, so you can continue feeding your little one with breast milk for as long as you choose.