U-TRED® is an innovative new product that Installs in Seconds onto open grid type steps used in the Mining, Construction and Agricultural Industries. The U-TRED® creates Revolutionary Step Definition and features Double action anti-slip cleats for that extra grip. With no nuts, bolts or fasteners of any kind, your steps are upgraded instantly.
Seems to be mainly aimed at mining companies but could be useful if you have those steel grid type stairs at home. Eg. On a boat, jetty, etc.