Staplers are tools used to fasten multiple sheets of paper together using metal staples. Unstaplers are devices used to remove already applied staples, allowing pages to be separated without damaging them. Staples are small metal pieces that are fixed into paper to hold several sheets together, typically applied with staplers or other specialized devices. All of these tools are commonly used in offices, schools, and other environments to organize and keep documents together in an orderly and efficient manner.