A bone folder is a simple yet essential tool used in bookbinding and paper crafts. Traditionally made from animal bone, it can also be found in materials like plastic or wood. The smooth, flat edge of a bone folder helps to create crisp folds and creases in paper, making it easier to achieve professional-looking results in projects like greeting cards or scrapbooking. Using a bone folder is straightforward. By running the edge along the paper, you can press down firmly to create a clean fold without damaging the surface. This tool is especially useful for working with delicate papers, ensuring that your creations, whether they are handmade books or art pieces, look polished and refined.