AUTHENTIC MEDELA SPARE PARTS: All items included in our Pump in Style Advanced Double Pumping Kit are authentic spare parts made to replace a damaged or worn breast pump kit, or to keep on hand as convenient extras for when you need them most DESIGNED FOR USE WITH YOUR PUMP IN STYLE ADVANCED BREAST PUMP: Our Pump in Style Advanced Double Pumping Kit is compatible with all Pump in Style Advanced breast pumps and includes the kit, plus nursing pads and PersonalFit breast shields and connectors ACCESSORY BAG INCLUDED FOR CONVENIENCE AND ORGANIZATION: A discreet drawstring accessory bag is included with our Pump in Style Advanced Double Pumping Kit to help keep your pump parts clean, organized, and easily accessible whenever needed MADE WITHOUT BPA: As always, all Medela breast pump components that come into contact with breast milk are made without BPA Great as a spare set or to replace your worn Accessory bag keeps the kit clean Authentic Medela spare parts