https://store.lci1.com/solid-stance-step-stabilizer-kit-2020109777

It’s not in stock currently but sign up to get notified when it is.

It’s out of stock on Amazon too. https://www.amazon.com/Lippert-Stabilizer-Trailers-Motorhomes-2020109777/dp/B08TJ36TBL/ref=sr_1_4?crid=C01UYSIREJPO&keywords=lippert+solid+stance+rv+step+stabilizer+kit&qid=1657708211&sprefix=Lippert+solid%2Caps%2C470&sr=8-4

I would invest in solid steps or the bottom step stabilizer

I put the Lippert Solid Stance on one of my two sets of stairs and it made a noticeable improvement. for $45 and less than 45 minutes, well worth it! Even if it had only made the steps feel more solid, I would have been happy.

If you need this for the long term, you might consider upgrading the stairs on your RV to a set of “Solid Step” entry stairs for your rig. They are pricy though, which is why I haven’t upgraded mine yet. I might try one of these in the short term. It’s a stabilizer device for retractable steps. https://www.amazon.com/Lippert-Stabilizer-Trailers-Motorhomes-2020109777/dp/B08TJ36TBL