Medela reusable pump sets are designed for repeated use.The convenient Medela reusable pump sets are an integral part of the complete Medela pumping and feeding system.To ensure best pumping results, use Medela breast pumps with Medela pump sets.The pump sets are designed to be used by multiple users (they are autoclaved in between).The reusable pump sets include everything mums need for expressing breast milk with the professional Medela Symphony breast pump.Designed for use by multiple mothers: an environmentally friendly optionTime-saving thanks to double pumpingDifferent breast shield and bottle sizes to meet individual mothers' needsBPA and phthalate free – safe for mother and baby.