1 tubing set with three connectors- one to connect to Melela Swing-maxi pump (double pump), two to connect to two breastshields.;BPA free material - safe to use for breastpumping.;Although this product does not look like MedelaÃ'¡Ã'¦s OEM tubing set, 100% compatibility in its functionality is guaranteed or your money back!;NOT recommended to be used with Medela Swing breast pump (single pump) as it will not work for few mothers (about 10%) who will need full strengths of power to do the pumping.