A New Look: This tile marker is a solid color design that works well to refurbish and repair tile crevices, darkened nooks and crannies, and has good moisture and stain resistance. No need to scrub the tiles, use the filling pen to paint your filling and give your filling a new look. The Ink is Durable: it can cover 150 feet of 2 mm thin slurry for small or large DIY projects. Because tile markers are waterproof and don't fade easily, they can be retained for longer days. Suitable for Use Anywhere: Bathrooms, kitchens, and any other room with floor tiles or ceilings, as well as anywhere that needs to be waterproofed. Pen Cover Color: Use the color chart (see picture) for the most accurate color description. The pen cover color represents the color of each pen, but may not be the exact color, please do a small area test first. Easy to Carry: Small volume of tile sealant, easy to carry. Filling pen is lightweight and portable, occupies small space, and is easy to store.