Grout Pen Tile Paint Marker Winter Grey : Waterproof Tile Grout Colorant Pen

Grout Pen Tile Paint Marker Winter Grey : Waterproof Tile Grout Colorant and Sealer Pen - Winter Grey, Narrow 5mm Tip. No scrubbing, bleaching, power washing, or regrouting required. Simply pump the pen until the paint starts flowing through the nib and get to coloring!

eBay