The Medela Sonata Double Pumping Kit is the perfect way to not only make sure that you've got an extra pumping set on hand for travel, but that your pump parts are clean and working properly. Includes 2 - Breast shield connectors; 2 - Valves; 2 - Membranes; 2 - 24 mm PersonalFit breast shields; 1 - Complete set of Sonata Breast Pump tubing; 8 - Disposable nursing pads; 1 - Quick Clean Micro-Steam bag; 1 - Drawstring bag for storage and organization; Medela Disposable Nursing Pad Features Excellent absorbency and leak protection - day or night; Extra thin and discreet under clothing; Comfortable; Double adhesive tape keeps pads in place; Greater value - Medela pads absorb more so you use less; Keeps you dry, comfortable & confident; Perfect for keeping in a purse, diaper bag or breast pump bag; Medlea Quick Clean Microsteam Bag Features Disinfect with steam; Chemical-free and environmentally-friendly; Can use each bag up to 20 times; Quick Clean Micro-Steam bags are part of the Quick Clean family of products and are great for work, travel and end of the day cleaning; Steam cleaning eliminates 99.9% of most common bacteria and germs; All you need is a microwave and water;.