Search engines I've encountered on the anti-slip strips of young. The price surprised me at first glance - but on closer inspection, the strip is not too expensive. Unit Price: about 3.50 - Stufenmatten cost sometimes more.
The delivery was fast. The material is fine and of high quality.
The strips can be easily stick. Clean stairs and then applying the strips. For pressing you should definitely use a paint roller and make sure that the strips are nice firmly pressed.
Result: the stripes drop to almost not at all and the stairs are the "Strumpfsock-run" again with no worries walkable. Super story!