Kit includes Lansinoh Signature Pro Double Electric Breast Pump, two 5-ounce Lansinoh breastfeeding bottles; two 5-mm ComfortFit flanges; two flange bodies, two diaphragms, two diaphragm caps, collar, NaturalWave nipple (slow flow), nipple cover, two storage lids, two white valves (plus two extra), three connection tubes, Y tubing connector, tubing strap, pump connector, AC adapter, tote bag and instruction booklet