Non-toxic Grout Aide Repair Tile Marker Water-resistant Odorless Ceramic Tile Repairing Pen with Reversible Nib 

Grout Aide Marker is the safe, easy way to refresh or change the color of grout by covering up stubborn grout stains. Grout Aid dries rapidly, and leaves a clean, uniform grout line without harsh chemicals-completely odorless-no fumes!
You can even use it to change colored grout to white. Anti-bacterial formula helps keep mold from returning.
It’s is easy to use. Just follow grout lines with marker. The Marker comes with non-slip comfort grip and durable pocket clip. Its’ handy, reversible nib extends the life of your marker. Instantly, ugly grout stains disappear.

Specification:
Material: Configuration potions +ABS
Color: white
Size: 148 x 21 x 16 mm