RESTORE DIRTY GROUT — Easily restore dirty tile grout lines with this unique grout pen that will instantly transform dark grout lines into a sparkly white surface. Make your bathroom and kitchen surfaces look brand new again! NON-TOXIC FORMULA — A water-based, non-toxic, and eco-friendly formula ensures safety from harmful chemicals. PRECISION APPLICATOR — A Precision tipped pen can be used on any tile grout surface. Fast drying formula is completed within minutes of application. Simply draw as you would with a normal pen for smooth grout lines, it's that easy! ANTI-MOLD FORMULA — Formulated with anti-bacterial agents help to prevent mold from reappearing. 60M COVERAGE — Contains enough liquid formula to cover up to 60 meters of coverage for narrow grout joints. Buy multiple pens to cover the entire bathroom or kitchen.