This Waterproof Grout Marker Repair Pen Instantly Colors And Covers Stained, Dirty, Or Old Grout On Bathroom/Kitchen Surfaces, Tile Floors, Countertops, And Walls To E A Like-New Appearance. It'S Eco-Friendly, Odorless, And Water-Based For Family Safety, With A Precision Applicator For Easy, Straight Line Application. Fast-Drying And Permanent On Most Surfaces, It Covers Up To 175 Feet Of Average Grout Lines (2Mm Line Width) And Works Well In Non-Ventilated Spaces. The Package Includes 1Pc Grout Pen For Convenient Home Grout Repair. Decoration Instantly Es Stained, Dirty, Or Old Grout On Bathroom/Kitchen Surfaces, Tile Floors, Countertops, Walls To A Like-New Appearance With Minimal Effort. Eco-Friendly, Odorless, And Water-Based Design Is Safe For Your Family; Suitable For Non-Ventilated Spaces Without Harsh Fumes Or Harmful Chemicals For Worry-Free Use. Precision Applicator Ensures Easy, Straight Grout Line Application; Fast-Drying Formula Ders Permanent Results On Most Surfaces; Covers Up To 175 Feet Of Average Grout Lines With A 2Mm Line Width For Consistent, Reliable Coverage. Multi-Functional Es Original Grout Color Or Changes It To Cover Stubborn Stains; Protective Material Resists Mildew, Moisture, And Stains To Prevent Further Issues, Keeping Your Home'S Surfaces Looking Fresh Longer. Package Includes 1Pc Grout Pen For All Your Grout Repair Needs; Simple, User-Friendly Design Requires No Special Tools—Just Apply Directly To Grout Lines For Quick, Mess-Free Ation Of Bathroom, Kitchen, Tile Floor, And Countertop Surfaces.