Staples Touch-Up Markers cover surface scratches, watermarks, worn edges, and other imperfections on all types of furniture and woodwork. The standard four basic wood shades can be used for almost any furniture finish and feature the same stains used by professional craftsmen and furniture manufacturers to achieve top quality results. A number of stain-specific shades are also available. With Staples Touch-Up Markers, each application darkens as it's repeated, and the marker colors can be intermixed - so it's easy to match almost any shade of wood. The stain dries in seconds to create a long-lasting repair that can be waxed or polished. Unlike ordinary markers, a special valve feeds stain to the marker tip only as needed, allowing control of the flow. The valve also seals off the reservoir in the barrel and prevents the marker from drying out.