The staircase from the ground floor to the 1st floor in our house is made of wood and the fact that we are mainly in socks in the house on the road, but this has proven to be arg slippery. A fall of this (fortunately without serious injury) I was immediately moved to secure the stairs accordingly. Even if the anti-slip strips are not visible, but I find them respectable as stair carpet or the like, especially since they do not stand out, if you do not look closely. Safe and super adhesive. Just buy it !!!