The feet are brill. I bought them with my ladder from Clow Ladders about 15 yrs ago. I had a mad helper when I first bought them. He used to put them on green moss, blue bricks, frosty concrete etc. I used to shout "no, it is too dangerous" but he ignored me, so I ran up and put my feet behind the grips, whilst he was on the way up, or often all the way up. When footing I often left a half inch gap to see if they slid. They never did. Still got them now.