Review on Complete Furniture Repair Kit: 13 Wood Markers, Wax Sticks & Sharpener - Perfect for Stains, Scratches, Wood Floors, and More! by Ricky Long

This is before and after. I'm happy with the result, but it's not the easiest process. I used a dark brown marker and I swear the marker dries INSTANTLY. My trick is to hold a paper towel already soaked in alcohol next to me, draw a line across the scratch with a marker, and then very quickly wipe the excess off the floor with the alcohol paper towel. Otherwise your floor will have a very visible marker stripe that won't move when you try to erase it. The scratch in the picture was deep enough for the marker to penetrate the bottom layer of soil. Other smaller and not so deep scratches are more difficult to work with as it takes some time to apply the marker to the smaller scratches, but there is no time to waste if the marker dries on the floor instantly. So it's a vicious circle: mark, delete, mark, delete, mark, delete. As for the large recesses in the floor. This is by far the easier process, but it takes multiple applications before the soil substrate stops absorbing the color and simply holds it. But in general they work and work.