Grout Pen Ivory Tile Paint Marker: Waterproof Grout Paint, Tile Grout Colorant and Sealer Pen - Ivory, Narrow 5mm Tip (7mL). USE ON UNSEALED GROUT ONLY: GROUT PEN may not bond to sealed grout. LONG LASTING INK: Tackle small or large DIY projects with a pen that covers up to 150 feet of thin 2mm grout.
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