I can recommend the anthrazithfarbenen Stufenmatten very. Very easy to install and the material feels very stable, but also to fine. It runs up the stairs now perfectly up and down, nothing slips and fits optically very great on our beech-colored stairs. The seller is first-class, ordered yesterday and today (across Germany) delivered. Similarly to previous shipping Question on my part, a very fast and very friendly email contact. Thanks to Kettelservice Metzker. Gladly again. Better It's really !!