Effectively extends the shelf life of food. The gap between the seals is about 3.5mm, which can completely block food in the bag. Whether it's a thin potato chip bag or a thick flour bag, it can be sealed directly without preheating.How to seal the bag: Turn the knob to “+”, then press the knob to slide from left to right.With it, you can also make ice packs or water bags quickly.Turn the button clockwise to switch to the open bag mode. Help you easily open the bag and make the opening clean and beautiful.Bag opening method: Turn the knob to “-”, then press the knob to slide from left to right.When the button is rotated to the middle position, it is in the lock mode. It is safer to put in the bag and can also prevent children from accidentally injuring.It is powered by 2 AA Batteries. (Battery Not Included)It has a lanyard at the end to help you better store it.It can also be sucked on the refrigerator.It can also be used as a mobile phone holder.It can be operated with one hand.The new generation of sealer's heating zone is designed with a centralized design and greatly improved performance. It can be used directly without waiting for preheating.Note: It does not apply to thin storage bags, plain paper bags and thick foil bags.Color:Package: