The Minwax Wood Finish Stain Marker in Dark Walnut is a semi-transparent liquid stain specifically designed for wood surfaces. With a matte sheen and brown color, this marker is perfect for both outdoor and interior use. It is easy to apply and ideal for staining various types of wood to enhance its natural beauty. With one marker included in the pack, this product is a convenient and effective choice for those looking to add a rich, warm tone to their wooden surfaces.