2 Tile PensThe length of the grout tile pen is about 14cm long and the tip size is about 4.5mm. We offer a variety of color options, white, black, beige, gray, dark gray, brown to meet your daily use and replacement needs. Clean Floors & TilesThese grout tile markers will be applied to the stained joints between tiles and will give the floor a fresh and clean look after painting, playing an important role in improving your home decor. Easy to useBefore use, please shake the grout tile marker several times, then press with the tip until the ink leaks; remember to cover the cap after use to prevent the ink from evaporating. High Quality MaterialsEach grout tile pen is mainly made of trustworthy water-based materials, which are safe and durable, and can serve you for a long time. Wide applicationsThe grout restorer pen lines are fast drying(1-2 minutes), it works on epoxy grout, mortar joints, any grout areas that start to become a bit dingy and covered with mold.