I had purchased these stair trends from slipping on the wooden steps.  I love, love, love (yes that much).  They are well made, great quality and to show how easy to install on the steps; I did it myself - I am women hear me roar  I went to Home  Depot and purchased the double back glue stripes and “perfectly” lined them up (see picture) you would thought a professional did it.  It’s time-consuming but if you have patience you would have great results.