Tongs are like super long and strong fingers that humans use to pick up and move things without touching them directly with their hands. They usually have two arms that are connected at one end and can be squeezed together at the other end to grab stuff.
Imagine if you're eating spaghetti and you don't want to get sauce all over your hands, you can use tongs to grab the noodles and put them in your mouth. Tongs are also used to pick up hot things like pieces of meat from a grill or coal from a fire. They're great for picking up objects that are too small, too hot, or too gross to touch with just your regular hands.
Tongs often come in different sizes and shapes depending on what you need them for. Some tongs are made of metal or plastic, while others have fancy grips or even special attachments to help with specific tasks. But no matter what kind of tongs you use, they all let you do things that would be difficult, dangerous, or just plain icky to do with your hands alone.