Ceys White Marker, or grout whitener, easily and quickly restores grout between tiles in kitchens, bathrooms, and floors. It contains special active ingredients that prevent mold growth. The whitener is equipped with a non-slip holder and a double-sided tip, which extends its usability. The whitener is intended for grout at least 2 mm wide. Drying time is 30 minutes, grout is water-resistant after 12 hours. White Marker covers up to 50 linear meters.