Wood filler is a substance used to repair imperfections in wooden surfaces, such as cracks, holes, or scratches. It is typically made from a combination of wood fibers, binders, and solvents, allowing it to blend well with the surrounding wood. Once applied, it dries hard and can be sanded, stained, or painted to match the original surface. This product is commonly used in woodworking and furniture restoration projects. Wood filler helps improve the appearance of wooden items and extends their lifespan by sealing gaps that could allow moisture or pests to enter. It is available in various colors to suit different types of wood.