Binder clips are small, metal devices used to hold sheets of paper together. They consist of a rectangular piece of metal with two metal arms that can be squeezed to open and close the clip. This design allows them to securely grip multiple pages without damaging the paper, making them a popular choice in offices and schools. These clips come in various sizes, accommodating different amounts of paper. Unlike traditional paper clips, binder clips can hold thicker stacks and are reusable. They are also available in different colors and styles, adding a touch of personalization to office supplies.