Spectra Synergy Gold Dual Adjustable Electric Breast Pump. Includes: – 2 Spectra Breast Flanges 24mm. – 2 Spectra Breast Flanges 28mm. – 2 Spectra Backflow Protectors with silicone membrane, uppercase, and lowercase caps. – 2 Spectra Duckbill Valves. – 2 Spectra Tubing with Adapter Ends for each Tubing. – 2 Spectra Wide Neck Storage Bottles with nipple, cap, disc and cover for each bottle. – 1 Spectra 12-Volt AC Power Adapter. International voltage compatible but only US wall outlet prong included.