These awesome tiles look and feel like stone because they ARE real stone.  Quite thin, this allows you to cut and trim them with a pair of sheers or tin snips.  Apply easily to a clean wall or flat surface.  No worries going over grooved paneling.  Peel off the backing to reveal the self-stick material, align the tile where you want it and press down starting with one edge to avoid trapped air pockets behind it.  As beautiful as it is easy to apply and easy to work with.  No grout to deal with.  Some say they used additional adhesive but I have had no issues at all applying it to clean paneling using nothing but the self-stick backing.  These beautiful tiles blow subway tile into the weeds.  A warm addition to your kitchen.