Toggle bolts are a type of fastener used to secure objects to hollow walls, such as drywall. They consist of a bolt and a pair of wings that open up once inserted into the wall. This design allows the toggle bolt to distribute weight over a larger area, making it ideal for hanging heavier items like shelves or mirrors. To install a toggle bolt, a hole is drilled into the wall, and the wings are folded down to fit through the opening. Once inside, the wings expand, providing a strong anchor point. This makes toggle bolts a reliable choice for various mounting applications.