The stair treads nice, I like that they don't require any adhesive, and feel heavy duty and made of good quality. Perfect for when i had both little ones and elderly folk visiting and using the stairs. Even my 25lb doggo uses them, now is confident to bound up the stairs two at a time with these grips. They only budge ever so slightly, as I would expect, but I probably have only had to nudge them back in place once or twice over the last 2 months of daily use. Would recommend!