Ideal for renovating your tile joints, this easy to use Grout Restoring Marker renews and restores grout. Simply draw over grout to whiten it. Marker is quick-drying and water-resistant. Reversible nib extends the life of the marker. It is permanent, odorless and non-toxic. Comes packaged in a blister pack. Additional Details ------------------------------ Product description: Ideal for renovating your tile joints, this easy to use Grout Restoring Marker renews and restores grout. Simply draw over grout to whiten it. Marker is quick-drying and water-resistant. Reversible nib extends the life of the marker. It is permanent, odorless and non-toxic. Comes packaged in a blister pack.