Just what we needed! We ripped up the carpet from our stairs to expose the natural wood but didn't realize there were nail heads everywhere. I got sick of accidentally stepping on these so I ordered the stair tread covers (and some double sided sticky tape).
That's why I gave these 4 stars instead of 5. They say anti slip or non slip backing but the rubbery bottom that is supposed to grip doesn't work well at all. If my stairs were made of stone, I'm sure the grip part would work fine.