Grout Pen Waterproof White Tile Paint Marker Narrow, 7mL Tile Grout Colorant
USE ON UNSEALED GROUT ONLY: GROUT PEN may not bond to sealed grout. Grout Paint. LONG LASTING INK: Tackle small or large DIY projects with a pen that covers up to 150 feet of thin 2mm grout. Rainbow Chalk Markers Ltd.