This mini bag sealer provides a portable way to seal and cut plastic bags in one device. The magnetic design on the bottom makes it easy to pick up and stick to the refrigerator or any metal surface, making it a time-saving kitchen tool. Just place the edge of the bag between the sealing jaws without preheating, slide it slowly and evenly along the edge of the bag, and press the positive symbol button at the same time to seal tightly. Press the negative button to cut the bag smoothly.