Grout Pen White Tile Paint Marker: Waterproof Grout Paint, Tile Grout Colorant
USE ON UNSEALED GROUT ONLY: GROUT PEN may not bond to sealed grout. No need to push the tip into the grout while dragging it across the grout line. GROUT PEN – Draw The Line on Tired Grout. Available in a Narrow 5mm or Wide 15mm tip size, GROUT PEN can cover thin and thick grout lines.