This is a great idea.  The carpet itself is a rich, neutral brown but although its a short pile, t isn't very dense ie. not the best quality and for the price, I expected more.  The rubber backing is decent and these don't move much on the stairs although, they do still move.  Overall, I am relatively satisfied with this product, largely because it saves me having to install a runner at significant cost.  I would be great if these treads could be made in a larger "wedge" to accommodate corner stairs....