A hinge is a mechanical device that connects two objects, typically doors or drawers, allowing them to move freely on one axis while remaining connected. It consists of a thin flat bar or metal strip that is attached to one object and another similar piece attached to the other object. The ends of the hinge are designed so they can rotate around a pin that passes through holes in both pieces, thus enabling the objects to swing back and forth on the hinge. Hinges come in various shapes and sizes depending on their intended use, with some being more decorative than others. They play an important role in allowing smooth movement of doors or drawers while keeping them securely closed when not in use.