Keep food fresher longer, eliminate waste, and protect prized possessions. With the PolyScience 150 Series vacuum sealing system, food stays fresher in the freezer, pantry or refrigerator and keepsakes are protected from water, dirt, and dust. With 120 volts of power, the 150 series is convenient and easy to use with its one-touch sealing operation. The Seal Plus feature ensures that you get an airtight seal every time. Its pulse feature puts you in control by allowing you to determine the amount of vacuum for your item.