Grout Pen - Refresh Your Grout Revitalize old grout with these grout pens. Sanjie products are known for their good, durable quality and long lifespan. Edding possesses a unique culture and expertise, constantly developing innovative markers, pens, and inks to solve virtually any task. This pen features a round tip with a line width of 2-4 mm, bringing new life and shine to your grout. Use it on tired, dull grout in your kitchen or bathroom. The ink is water-based, quick-drying, waterproof, and smudge-proof, ensuring easy and effective application without smearing on tiles. Refresh dull and faded grout for a cleaner, brighter look. Shake before use and gently pump the ink to the tip before application. Color: White or Grey. Line Width: 2-4 mm. Tip: Round. Water-based ink. Revitalizes grout in kitchens and bathrooms. Brightens dull and dark grout in minutes. Dries quickly and keeps grout white. Grout Color: White or Grey. Contains 7.4 ml (enough for approx. 70 meters of grout). Permanently whitens grout. Resistant to water, mold, and dirt. Odorless. Nib Width: 2-4 mm.