NADAMOO Grout Pen Metallic Amber Brown 8 pcs Tile Grout Paint Pens with 8 Replacement Tips Grout Restorer Touch Up Repair Marker Renew Tile Grout Lines for Bathroon and Kitchen

It's an ink formula in a pen form that you draw over stained (but cleaned) grout lines to give them a fresh white appearance. It's an affordable quick fix perfect for renters or homeowners who want to do a minor renovation to kitchen bathroom grout lines stains. Steps: Begin With a Good Cleaning?Use the cleaning brush to clean stubborn areas. After cleaning, wipe down the area with the rag and let dry completely. With cap in place, shake the pen vigorously. The ball inside will rattle and down. Depress nib against a piece of paper gently until ink just flows. Test the flow of pen on paper. Then apply ink on tile grout lines, angled the pen and let it slide across.