This bag sealer is a pretty cool item. It just takes two double A batteries that are easy to install. It's so simple to use, simply squeeze it together for 3 seconds to heat up and then slide it across your open bag as you squeeze to seal it. It basically melts the bag together and creates a seal. It's simple but effective. It might take a couple practice tries before you get a straight solidly sealed lines. You can use this on bags of chips or crackers or other snacks and they will stay fresh.
This works on heavy plastic, but not on things like plastic freezer bags.Those I found melt to easily. The simple plastic device even has a magnet on the back so you can put it right on your refrigerator. That makes it so convenient. There is even a safety feature that you can slide into a locked position so that it doesn't get hot when it's locked. This is a really cool item.You can find this on Amazon Here.
I received this product for free for my honest unbiased review.