I am going to be installing these over a concrete floor. The floor has little imperfections here and there. Do the tiles contour or sink into the holes, or are they strong enough to hold their shape over a 2-3 inch imperfection?

Our 8mm Strong Rubber Tiles can be installed over minor imperfections in your subfloor. If there are any large and deep pits, there is potential for the tiles to become damaged. We would recommend repairing the subfloor before installation.